diff --git a/source/engine/ffi.c b/source/engine/ffi.c
index 8498a34..ee3c254 100644
--- a/source/engine/ffi.c
+++ b/source/engine/ffi.c
@@ -1033,13 +1033,18 @@ JSValue duk_cmd(JSContext *js, JSValueConst this, int argc, JSValueConst *argv)
       return str2js(tex_get_path(js2sprite(argv[1])->tex));
     case 117:
       str = JS_ToCString(js, argv[1]);
-      ret = JS_NewInt64(js, script_runfile(str));
+      ret = script_runfile(str);
       break;
 
     case 118:
       str = JS_ToCString(js,argv[1]);
       return bb2js(text_bb(str, js2number(argv[2]), js2number(argv[3]), 1.0));
       break;
+
+    case 119:
+      str = JS_ToCString(js, argv[1]);
+      ret = JS_NewInt64(js, file_mod_secs(str));
+      break;
   }
 
   if (str)
diff --git a/source/engine/script.c b/source/engine/script.c
index 83dc64c..36178ff 100644
--- a/source/engine/script.c
+++ b/source/engine/script.c
@@ -131,15 +131,18 @@ int script_dofile(const char *file) {
   return file_mod_secs(file);
 }
 
-int script_runfile(const char *file)
+JSValue script_runfile(const char *file)
 {
   const char *script = slurp_text(file);
   int bufsize = strlen(script)+50;
   char scriptbuffer[bufsize];
   snprintf(scriptbuffer,bufsize, "(function(){%s})()", script);
-  script_run(scriptbuffer,file);
+
+  JSValue obj = JS_Eval(js, script, strlen(script), file, JS_EVAL_FLAGS);
+  js_print_exception(obj);
+  
   free(script);
-  return file_mod_secs(file);
+  return obj;
 }
 
 /* env is an object in the scripting environment;
diff --git a/source/engine/script.h b/source/engine/script.h
index b837e3c..cb4d400 100644
--- a/source/engine/script.h
+++ b/source/engine/script.h
@@ -20,7 +20,7 @@ void script_startup();
 void script_init();
 void script_run(const char *script, const char *file);
 int script_dofile(const char *file);
-int script_runfile(const char *file);
+JSValue script_runfile(const char *file);
 void script_update(double dt);
 void script_draw();
 
diff --git a/source/scripts/engine.js b/source/scripts/engine.js
index 6cc26e6..f8b8832 100644
--- a/source/scripts/engine.js
+++ b/source/scripts/engine.js
@@ -11,13 +11,17 @@ function load(file) {
 
 function run(file)
 {
-  var modtime = cmd(117,file);
+  var text = IO.slurp(file);
+  eval?.(`"use strict";${text}`);
+  return;
+  var modtime = cmd(119, file);
   if (modtime === 0) {
     Log.stack();
     return false;
   }
 
   files[file] = modtime;
+  return cmd(117, file);
 }
 
 load("scripts/base.js");
@@ -280,11 +284,6 @@ GUI.defaults.debug_colors = {
 
 Object.values(GUI.defaults.debug_colors).forEach(function(v) { v.a = 100; });
 
-
-function listbox(pos, item) {
-  pos.y += (item[1] - 20);
-};
-
 var Yugine = {
   get dt() {
     return cmd(63);
@@ -1195,7 +1194,7 @@ var Level = {
 	this[x.varname] = x;
       }
     },this);
-    Log.warn("eval script");
+
     eval(this.script);
 
     if (typeof extern === 'object')