diff --git a/lib/hyperscript/compiler.sx b/lib/hyperscript/compiler.sx
index d8eadd64..16e94b69 100644
--- a/lib/hyperscript/compiler.sx
+++ b/lib/hyperscript/compiler.sx
@@ -1035,7 +1035,15 @@
                   ((fn-expr (hs-to-sx (nth ast 1)))
                     (args (map hs-to-sx (nth ast 2))))
                   (cons fn-expr args)))
-              ((= head (quote return)) (hs-to-sx (nth ast 1)))
+              ((= head (quote return))
+                (let
+                  ((val (nth ast 1)))
+                  (if
+                    (nil? val)
+                    (list (quote raise) (list (quote list) "hs-return" nil))
+                    (list
+                      (quote raise)
+                      (list (quote list) "hs-return" (hs-to-sx val))))))
               ((= head (quote throw))
                 (list (quote raise) (hs-to-sx (nth ast 1))))
               ((= head (quote settle))
@@ -1106,13 +1114,41 @@
                   (quote hs-init)
                   (list (quote fn) (list) (hs-to-sx (nth ast 1)))))
               ((= head (quote def))
-                (list
-                  (quote define)
-                  (make-symbol (nth ast 1))
+                (let
+                  ((body (hs-to-sx (nth ast 3)))
+                    (params
+                      (map
+                        (fn
+                          (p)
+                          (if
+                            (and (list? p) (= (first p) (quote ref)))
+                            (make-symbol (nth p 1))
+                            (make-symbol p)))
+                        (nth ast 2))))
                   (list
-                    (quote fn)
-                    (map make-symbol (nth ast 2))
-                    (hs-to-sx (nth ast 3)))))
+                    (quote define)
+                    (make-symbol (nth ast 1))
+                    (list
+                      (quote fn)
+                      params
+                      (list
+                        (quote guard)
+                        (list
+                          (quote _e)
+                          (list
+                            (quote true)
+                            (list
+                              (quote if)
+                              (list
+                                (quote and)
+                                (list (quote list?) (quote _e))
+                                (list
+                                  (quote =)
+                                  (list (quote first) (quote _e))
+                                  "hs-return"))
+                              (list (quote nth) (quote _e) 1)
+                              (list (quote raise) (quote _e)))))
+                        body)))))
               ((= head (quote behavior)) (emit-behavior ast))
               ((= head (quote sx-eval))
                 (let
diff --git a/spec/tests/test-hyperscript-behavioral.sx b/spec/tests/test-hyperscript-behavioral.sx
index 5c129e2d..354a536d 100644
--- a/spec/tests/test-hyperscript-behavioral.sx
+++ b/spec/tests/test-hyperscript-behavioral.sx
@@ -1826,12 +1826,10 @@
     ))
   (deftest "repeat forever works"
     (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")) (_el-d1 (dom-create-element "div")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def repeatForeverWithReturn()    set retVal to 0    repeat forever       set retVal to retVal + 1       if retVal == 5 then         return retVal       end    end  end")
+    (eval-expr-cek (hs-to-sx (hs-compile "def repeatForeverWithReturn() set retVal to 0 repeat forever set retVal to retVal + 1 if retVal == 5 then return retVal end end end")))
+    (let ((_el-d1 (dom-create-element "div")))
       (dom-set-attr _el-d1 "id" "d1")
       (dom-set-attr _el-d1 "_" "on click put repeatForeverWithReturn() into my.innerHTML")
-      (dom-append (dom-body) _el-script)
       (dom-append (dom-body) _el-d1)
       (hs-activate! _el-d1)
       (dom-dispatch _el-d1 "click" nil)
@@ -1839,12 +1837,10 @@
     ))
   (deftest "repeat forever works w/o keyword"
     (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")) (_el-d1 (dom-create-element "div")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def repeatForeverWithReturn()    set retVal to 0    repeat       set retVal to retVal + 1       if retVal == 5 then         return retVal       end    end  end")
+    (eval-expr-cek (hs-to-sx (hs-compile "def repeatForeverWithReturn() set retVal to 0 repeat set retVal to retVal + 1 if retVal == 5 then return retVal end end end")))
+    (let ((_el-d1 (dom-create-element "div")))
       (dom-set-attr _el-d1 "id" "d1")
       (dom-set-attr _el-d1 "_" "on click put repeatForeverWithReturn() into my.innerHTML")
-      (dom-append (dom-body) _el-script)
       (dom-append (dom-body) _el-d1)
       (hs-activate! _el-d1)
       (dom-dispatch _el-d1 "click" nil)
@@ -1879,12 +1875,10 @@
     ))
   (deftest "while keyword works"
     (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")) (_el-d1 (dom-create-element "div")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def repeatWhileTest()    set retVal to 0    repeat while retVal < 5       set retVal to retVal + 1    end    return retVal  end")
+    (eval-expr-cek (hs-to-sx (hs-compile "def repeatWhileTest() set retVal to 0 repeat while retVal < 5 set retVal to retVal + 1 end return retVal end")))
+    (let ((_el-d1 (dom-create-element "div")))
       (dom-set-attr _el-d1 "id" "d1")
       (dom-set-attr _el-d1 "_" "on click put repeatWhileTest() into my.innerHTML")
-      (dom-append (dom-body) _el-script)
       (dom-append (dom-body) _el-d1)
       (hs-activate! _el-d1)
       (dom-dispatch _el-d1 "click" nil)
@@ -1892,12 +1886,10 @@
     ))
   (deftest "until keyword works"
     (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")) (_el-d1 (dom-create-element "div")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def repeatUntilTest()    set retVal to 0    repeat until retVal == 5       set retVal to retVal + 1    end    return retVal  end")
+    (eval-expr-cek (hs-to-sx (hs-compile "def repeatUntilTest() set retVal to 0 repeat until retVal == 5 set retVal to retVal + 1 end return retVal end")))
+    (let ((_el-d1 (dom-create-element "div")))
       (dom-set-attr _el-d1 "id" "d1")
       (dom-set-attr _el-d1 "_" "on click put repeatUntilTest() into my.innerHTML")
-      (dom-append (dom-body) _el-script)
       (dom-append (dom-body) _el-d1)
       (hs-activate! _el-d1)
       (dom-dispatch _el-d1 "click" nil)
@@ -1905,23 +1897,19 @@
     ))
   (deftest "until event keyword works"
     (hs-cleanup!)
-    (let ((_el-untilTest (dom-create-element "div")) (_el-script (dom-create-element "script")))
+    (eval-expr-cek (hs-to-sx (hs-compile "def repeatUntilTest() repeat until event click from #untilTest wait 2ms end return 42 end")))
+    (let ((_el-untilTest (dom-create-element "div")))
       (dom-set-attr _el-untilTest "id" "untilTest")
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def repeatUntilTest()    repeat until event click from #untilTest      wait 2ms    end    return 42  end")
       (dom-append (dom-body) _el-untilTest)
-      (dom-append (dom-body) _el-script)
       (dom-dispatch _el-untilTest "click" nil)
       ;; SKIP check: skip value.should.equal(42)
     ))
   (deftest "only executes the init expression once"
     (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")) (_el-d1 (dom-create-element "div")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def getArray()    set window.called to (window.called or 0) + 1    return [1, 2, 3]  end")
+    (eval-expr-cek (hs-to-sx (hs-compile "def getArray() set window.called to (window.called or 0) + 1 return [1, 2, 3] end")))
+    (let ((_el-d1 (dom-create-element "div")))
       (dom-set-attr _el-d1 "id" "d1")
       (dom-set-attr _el-d1 "_" "on click for x in getArray() put x into my.innerHTML end")
-      (dom-append (dom-body) _el-script)
       (dom-append (dom-body) _el-d1)
       (hs-activate! _el-d1)
       (dom-dispatch _el-d1 "click" nil)
@@ -1930,12 +1918,10 @@
     ))
   (deftest "can nest loops"
     (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")) (_el-d1 (dom-create-element "div")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def sprayInto(elt)    for x in [1, 2, 3]      for y in [1, 2, 3]        put x * y at end of elt      end    end  end")
+    (eval-expr-cek (hs-to-sx (hs-compile "def sprayInto(elt) for x in [1, 2, 3] for y in [1, 2, 3] put x * y at end of elt end end end")))
+    (let ((_el-d1 (dom-create-element "div")))
       (dom-set-attr _el-d1 "id" "d1")
       (dom-set-attr _el-d1 "_" "on click call sprayInto(me)")
-      (dom-append (dom-body) _el-script)
       (dom-append (dom-body) _el-d1)
       (hs-activate! _el-d1)
       (dom-dispatch _el-d1 "click" nil)
@@ -3669,11 +3655,9 @@
     ))
   (deftest "can be in a top level script tag"
     (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")) (_el-loadedDemo (dom-create-element "div")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "on load put \"Loaded\" into #loadedDemo.innerHTML")
+    (eval-expr-cek (hs-to-sx (hs-compile "on load put \"Loaded\" into #loadedDemo.innerHTML")))
+    (let ((_el-loadedDemo (dom-create-element "div")))
       (dom-set-attr _el-loadedDemo "id" "loadedDemo")
-      (dom-append (dom-body) _el-script)
       (dom-append (dom-body) _el-loadedDemo)
       ;; SKIP check: skip byId("loadedDemo").innerText.should.equal("Loaded")
     ))
@@ -4043,11 +4027,9 @@
     ))
   (deftest "can catch exceptions thrown in hyperscript functions"
     (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")) (_el-button (dom-create-element "button")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def throwBar()    throw 'bar'  end")
+    (eval-expr-cek (hs-to-sx (hs-compile "def throwBar() throw 'bar' end")))
+    (let ((_el-button (dom-create-element "button")))
       (dom-set-attr _el-button "_" "on click throwBar() catch e put e into me")
-      (dom-append (dom-body) _el-script)
       (dom-append (dom-body) _el-button)
       (hs-activate! _el-button)
       (dom-dispatch _el-button "click" nil)
@@ -4259,205 +4241,119 @@
       (assert= (dom-inner-html _el-div) "42")
     ))
   (deftest "can define an init block in a script"
-    (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "init    set window.foo to 42  end")
-      (dom-append (dom-body) _el-script)
-      ;; SKIP check: skip window.foo.should.equal(42)
-    ))
+    (error "NOT IMPLEMENTED: test HTML could not be parsed into SX"))
   (deftest "can initialize immediately"
-    (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "init set window.foo to 10                                init immediately set window.bar to window.foo")
-      (dom-append (dom-body) _el-script)
-      ;; SKIP check: skip window.foo.should.equal(10)
-    ))
+    (error "NOT IMPLEMENTED: test HTML could not be parsed into SX"))
 )
 
 ;; ── def (27 tests) ──
 (defsuite "hs-upstream-def"
   (deftest "can define a basic no arg function"
     (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")) (_el-div (dom-create-element "div")) (_el-d1 (dom-create-element "div")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo()   add .called to #d1 end")
+    (eval-expr-cek (hs-to-sx (hs-compile "def foo() add .called to #d1 end")))
+    (let ((_el-div (dom-create-element "div")) (_el-d1 (dom-create-element "div")))
       (dom-set-attr _el-div "_" "on click call foo()")
       (dom-set-attr _el-d1 "id" "d1")
-      (dom-append (dom-body) _el-script)
       (dom-append (dom-body) _el-div)
       (dom-append (dom-body) _el-d1)
       (hs-activate! _el-div)
-      (dom-dispatch _el-script "click" nil)
+      (dom-dispatch _el-div "click" nil)
       (assert (dom-has-class? _el-div "called"))
     ))
   (deftest "can define a basic one arg function"
     (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")) (_el-div (dom-create-element "div")) (_el-d1 (dom-create-element "div")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo(str) put str into #d1.innerHTML end")
+    (eval-expr-cek (hs-to-sx (hs-compile "def foo(str) put str into #d1.innerHTML end")))
+    (let ((_el-div (dom-create-element "div")) (_el-d1 (dom-create-element "div")))
       (dom-set-attr _el-div "_" "on click call foo(\"called\")")
       (dom-set-attr _el-d1 "id" "d1")
-      (dom-append (dom-body) _el-script)
       (dom-append (dom-body) _el-div)
       (dom-append (dom-body) _el-d1)
       (hs-activate! _el-div)
-      (dom-dispatch _el-script "click" nil)
+      (dom-dispatch _el-div "click" nil)
       (assert= (dom-inner-html _el-div) "called")
     ))
   (deftest "functions can be namespaced"
     (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")) (_el-div (dom-create-element "div")) (_el-d1 (dom-create-element "div")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def utils.foo()   add .called to #d1 end")
+    (eval-expr-cek (hs-to-sx (hs-compile "def utils.foo() add .called to #d1 end")))
+    (let ((_el-div (dom-create-element "div")) (_el-d1 (dom-create-element "div")))
       (dom-set-attr _el-div "_" "on click call utils.foo()")
       (dom-set-attr _el-d1 "id" "d1")
-      (dom-append (dom-body) _el-script)
       (dom-append (dom-body) _el-div)
       (dom-append (dom-body) _el-d1)
       (hs-activate! _el-div)
-      (dom-dispatch _el-script "click" nil)
+      (dom-dispatch _el-div "click" nil)
       (assert (dom-has-class? _el-div "called"))
     ))
   (deftest "is called synchronously"
     (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")) (_el-div (dom-create-element "div")) (_el-d1 (dom-create-element "div")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo()   log meend")
+    (eval-expr-cek (hs-to-sx (hs-compile "def foo() log meend")))
+    (let ((_el-div (dom-create-element "div")) (_el-d1 (dom-create-element "div")))
       (dom-set-attr _el-div "_" "on click call foo() then add .called to #d1")
       (dom-set-attr _el-d1 "id" "d1")
-      (dom-append (dom-body) _el-script)
       (dom-append (dom-body) _el-div)
       (dom-append (dom-body) _el-d1)
       (hs-activate! _el-div)
-      (dom-dispatch _el-script "click" nil)
+      (dom-dispatch _el-div "click" nil)
       (assert (dom-has-class? _el-div "called"))
     ))
   (deftest "can call asynchronously"
     (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")) (_el-div (dom-create-element "div")) (_el-d1 (dom-create-element "div")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo()   wait 1ms  log meend")
+    (eval-expr-cek (hs-to-sx (hs-compile "def foo() wait 1ms log meend")))
+    (let ((_el-div (dom-create-element "div")) (_el-d1 (dom-create-element "div")))
       (dom-set-attr _el-div "_" "on click call foo() then add .called to #d1")
       (dom-set-attr _el-d1 "id" "d1")
-      (dom-append (dom-body) _el-script)
       (dom-append (dom-body) _el-div)
       (dom-append (dom-body) _el-d1)
       (hs-activate! _el-div)
-      (dom-dispatch _el-script "click" nil)
+      (dom-dispatch _el-div "click" nil)
       (assert (dom-has-class? _el-div "called"))
     ))
   (deftest "can return a value synchronously"
     (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")) (_el-div (dom-create-element "div")) (_el-d1 (dom-create-element "div")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo()   return \"foo\"end")
+    (eval-expr-cek (hs-to-sx (hs-compile "def foo() return \"foo\"end")))
+    (let ((_el-div (dom-create-element "div")) (_el-d1 (dom-create-element "div")))
       (dom-set-attr _el-div "_" "on click call foo() then put it into #d1.innerText")
       (dom-set-attr _el-d1 "id" "d1")
-      (dom-append (dom-body) _el-script)
       (dom-append (dom-body) _el-div)
       (dom-append (dom-body) _el-d1)
       (hs-activate! _el-div)
-      (dom-dispatch _el-script "click" nil)
+      (dom-dispatch _el-div "click" nil)
       ;; SKIP check: skip div.innerText.should.equal("")
       ;; SKIP check: skip div.innerText.should.equal("foo")
     ))
   (deftest "can exit"
-    (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo()   exit end")
-      (dom-append (dom-body) _el-script)
-    ))
+    (error "NOT IMPLEMENTED: test HTML could not be parsed into SX"))
   (deftest "can return a value asynchronously"
     (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")) (_el-div (dom-create-element "div")) (_el-d1 (dom-create-element "div")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo()   wait 1ms  return \"foo\"end")
+    (eval-expr-cek (hs-to-sx (hs-compile "def foo() wait 1ms return \"foo\"end")))
+    (let ((_el-div (dom-create-element "div")) (_el-d1 (dom-create-element "div")))
       (dom-set-attr _el-div "_" "on click call foo() then put it into #d1.innerText")
       (dom-set-attr _el-d1 "id" "d1")
-      (dom-append (dom-body) _el-script)
       (dom-append (dom-body) _el-div)
       (dom-append (dom-body) _el-d1)
       (hs-activate! _el-div)
-      (dom-dispatch _el-script "click" nil)
+      (dom-dispatch _el-div "click" nil)
       ;; SKIP check: skip div.innerText.should.equal("")
       ;; SKIP check: skip div.innerText.should.equal("foo")
     ))
   (deftest "can interop with javascript"
-    (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo()   return \"foo\"end")
-      (dom-append (dom-body) _el-script)
-      ;; SKIP check: skip foo().should.equal("foo")
-    ))
+    (error "NOT IMPLEMENTED: test HTML could not be parsed into SX"))
   (deftest "can interop with javascript asynchronously"
-    (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo()   wait 1ms  return \"foo\"end")
-      (dom-append (dom-body) _el-script)
-      ;; SKIP check: skip val.should.equal("foo")
-    ))
+    (error "NOT IMPLEMENTED: test HTML could not be parsed into SX"))
   (deftest "can catch exceptions"
-    (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo()   throw \"bar\"catch e    set window.bar to e end")
-      (dom-append (dom-body) _el-script)
-      ;; SKIP check: skip window.bar.should.equal("bar")
-    ))
+    (error "NOT IMPLEMENTED: test HTML could not be parsed into SX"))
   (deftest "can rethrow in catch blocks"
-    (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo()   throw \"bar\"catch e    throw e end")
-      (dom-append (dom-body) _el-script)
-      ;; SKIP check: skip true.should.equal(false)
-      ;; SKIP check: skip e.should.equal("bar")
-    ))
+    (error "NOT IMPLEMENTED: test HTML could not be parsed into SX"))
   (deftest "can return in catch blocks"
-    (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo()   throw \"bar\"catch e    return 42 end")
-      (dom-append (dom-body) _el-script)
-      ;; SKIP check: skip foo().should.equal(42)
-    ))
+    (error "NOT IMPLEMENTED: test HTML could not be parsed into SX"))
   (deftest "can catch async exceptions"
-    (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def doh()   wait 10ms  throw \"bar\"end  def foo()   call doh()catch e    set window.bar to e end")
-      (dom-append (dom-body) _el-script)
-      ;; SKIP check: skip window.bar.should.equal("bar")
-    ))
+    (error "NOT IMPLEMENTED: test HTML could not be parsed into SX"))
   (deftest "can catch nested async exceptions"
-    (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def doh()   wait 10ms  throw \"bar\"end  def foo()   call doh()catch e    set window.bar to e end")
-      (dom-append (dom-body) _el-script)
-      ;; SKIP check: skip window.bar.should.equal("bar")
-    ))
+    (error "NOT IMPLEMENTED: test HTML could not be parsed into SX"))
   (deftest "can rethrow in async catch blocks"
-    (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo()   throw \"bar\"catch e    wait 10ms    throw e end")
-      (dom-append (dom-body) _el-script)
-      ;; SKIP check: skip reason.should.equal("bar")
-    ))
+    (error "NOT IMPLEMENTED: test HTML could not be parsed into SX"))
   (deftest "can return in async catch blocks"
-    (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo()   throw \"bar\"catch e    wait 10ms    return 42 end")
-      (dom-append (dom-body) _el-script)
-      ;; SKIP check: skip val.should.equal(42)
-    ))
+    (error "NOT IMPLEMENTED: test HTML could not be parsed into SX"))
   (deftest "can install a function on an element and use in children w/ no leak"
     (hs-cleanup!)
     (let ((_el-div (dom-create-element "div")) (_el-d1 (dom-create-element "div")) (_el-d2 (dom-create-element "div")) (_el-d3 (dom-create-element "div")))
@@ -4507,59 +4403,19 @@
       ;; SKIP check: skip div.innerText.should.equal("42")
     ))
   (deftest "finally blocks run normally"
-    (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo()   set window.bar to 10finally    set window.bar to 20 end")
-      (dom-append (dom-body) _el-script)
-      ;; SKIP check: skip window.bar.should.equal(20)
-    ))
+    (error "NOT IMPLEMENTED: test HTML could not be parsed into SX"))
   (deftest "finally blocks run when an exception occurs"
-    (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo()   set window.bar to 10  throw \"foo\"finally    set window.bar to 20 end")
-      (dom-append (dom-body) _el-script)
-      ;; SKIP check: skip window.bar.should.equal(20)
-    ))
+    (error "NOT IMPLEMENTED: test HTML could not be parsed into SX"))
   (deftest "finally blocks run when an exception expr occurs"
-    (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo()   set window.bar to 10  call throwsAsyncException()finally    set window.bar to 20 end")
-      (dom-append (dom-body) _el-script)
-      ;; SKIP check: skip window.bar.should.equal(20)
-    ))
+    (error "NOT IMPLEMENTED: test HTML could not be parsed into SX"))
   (deftest "async finally blocks run normally"
-    (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo()   wait a tick then set window.bar to 10finally    set window.bar to 20 end")
-      (dom-append (dom-body) _el-script)
-      ;; SKIP check: skip window.bar.should.equal(20)
-    ))
+    (error "NOT IMPLEMENTED: test HTML could not be parsed into SX"))
   (deftest "async finally blocks run when an exception occurs"
-    (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo()   wait a tick then set window.bar to 10  throw \"foo\"finally    set window.bar to 20 end")
-      (dom-append (dom-body) _el-script)
-      ;; SKIP check: skip window.bar.should.equal(20)
-    ))
+    (error "NOT IMPLEMENTED: test HTML could not be parsed into SX"))
   (deftest "exit stops execution mid-function"
-    (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo() set x to 1 then exit then set x to 2 then return x end")
-      (dom-append (dom-body) _el-script)
-    ))
+    (error "NOT IMPLEMENTED: test HTML could not be parsed into SX"))
   (deftest "can return without a value"
-    (hs-cleanup!)
-    (let ((_el-script (dom-create-element "script")))
-      (dom-set-attr _el-script "type" "text/hyperscript")
-      (dom-set-inner-html _el-script "def foo()   return end")
-      (dom-append (dom-body) _el-script)
-    ))
+    (error "NOT IMPLEMENTED: test HTML could not be parsed into SX"))
 )
 
 ;; ── askAnswer (5 tests) ──
diff --git a/tests/playwright/generate-sx-tests.py b/tests/playwright/generate-sx-tests.py
index 0d097301..69b71c22 100644
--- a/tests/playwright/generate-sx-tests.py
+++ b/tests/playwright/generate-sx-tests.py
@@ -25,11 +25,25 @@ with open(INPUT) as f:
 
 # ── HTML parsing ──────────────────────────────────────────────────
 
+def extract_hs_scripts(html):
+    """Extract <script type='text/hyperscript'>...</script> content blocks."""
+    scripts = []
+    for m in re.finditer(
+        r"<script\s+type=['\"]text/hyperscript['\"]>(.*?)</script>",
+        html, re.DOTALL
+    ):
+        scripts.append(m.group(1).strip())
+    return scripts
+
+
 def parse_html(html):
     """Parse HTML into list of element dicts with parent-child relationships.
     Uses Python's html.parser for reliability with same-tag siblings."""
     from html.parser import HTMLParser
 
+    # Remove script tags before parsing elements (they're handled separately)
+    html = re.sub(r"<script\s+type=['\"]text/hyperscript['\"]>.*?</script>", '', html, flags=re.DOTALL)
+
     # Remove | separators
     html = html.replace(' | ', '')
 
@@ -588,10 +602,20 @@ def generate_test_chai(test, elements, var_names, idx):
     actions = parse_action(test['action'], ref)
     checks = parse_checks(test['check'])
 
+    # Extract <script type="text/hyperscript"> blocks
+    hs_scripts = extract_hs_scripts(test.get('html', ''))
+
     lines = []
     lines.append(f'  (deftest "{test["name"]}"')
     lines.append('    (hs-cleanup!)')
 
+    # Compile HS script blocks as setup (def functions etc.)
+    for script in hs_scripts:
+        # Clean whitespace
+        clean = ' '.join(script.split())
+        escaped = clean.replace('\\', '\\\\').replace('"', '\\"')
+        lines.append(f'    (eval-expr-cek (hs-to-sx (hs-compile "{escaped}")))')
+
     bindings = [f'({var_names[i]} (dom-create-element "{el["tag"]}"))' for i, el in enumerate(elements)]
     lines.append(f'    (let ({" ".join(bindings)})')