diff --git a/binding-mri/binding-mri.cpp b/binding-mri/binding-mri.cpp
index c8b3b02..21537f7 100644
--- a/binding-mri/binding-mri.cpp
+++ b/binding-mri/binding-mri.cpp
@@ -31,6 +31,12 @@
 #include "audio.h"
 #include "boost-hash.h"
 
+#ifdef __EMSCRIPTEN__
+#include <emscripten.h>
+#endif
+
+#include <SDL_timer.h>
+
 #include <ruby.h>
 #ifndef RUBY_LEGACY_VERSION
 #include <ruby/encoding.h>
@@ -277,8 +283,8 @@ RB_METHOD(mriRgssMain)
 	{
 		VALUE exc = Qnil;
 
-		rb_rescue2((VALUE(*)(VALUE *)) rgssMainCb, rb_block_proc(),
-		           (VALUE(*)(VALUE, VALUE)) rgssMainRescue, (VALUE) &exc,
+		rb_rescue2((VALUE(*)(ANYARGS)) rgssMainCb, rb_block_proc(),
+		           (VALUE(*)(ANYARGS)) rgssMainRescue, (VALUE) &exc,
 		           rb_eException, (VALUE) 0);
 
 		if (NIL_P(exc))
@@ -352,9 +358,6 @@ static VALUE evalHelper(evalArg *arg)
 	return rb_funcall2(Qnil, rb_intern("eval"), ARRAY_SIZE(argv), argv);
 }
 
-#ifdef __EMSCRIPTEN__
-#include <emscripten.h>
-#endif
 static VALUE evalString(VALUE string, VALUE filename, int *state)
 {
 	evalArg arg = { string, filename };
@@ -385,6 +388,12 @@ struct BacktraceData
 
 #define SCRIPT_SECTION_FMT (rgssVer >= 3 ? "{%04ld}" : "Section%03ld")
 
+void main_update_loop() {
+	int state;
+	VALUE result;
+	result = rb_eval_string_protect("main_update_loop", &state);
+}
+
 static void __attribute__ ((optnone)) runRMXPScripts(BacktraceData &btData)
 {
 	const Config &conf = shState->rtData().config;
@@ -485,7 +494,8 @@ static void __attribute__ ((optnone)) runRMXPScripts(BacktraceData &btData)
 	if (exc != Qnil)
 		return;
 
-	while (true)
+
+	/* Execute scripts */
 	{
 		for (long i = 0; i < scriptCount; ++i)
 		{
@@ -513,6 +523,17 @@ static void __attribute__ ((optnone)) runRMXPScripts(BacktraceData &btData)
 				break;
 		}
 
+#ifdef __EMSCRIPTEN__
+		/* Use loop for emscripten */
+		emscripten_set_main_loop(main_update_loop,0, 0);
+#else
+		while(true) {
+			int state;
+			VALUE result;
+			result = rb_eval_string_protect("main_update_loop", &state);
+			if (state) break;
+		}
+
 		printf("tick\n");
 		shState->eThread().process(shState->rtData());
 
@@ -521,6 +542,7 @@ static void __attribute__ ((optnone)) runRMXPScripts(BacktraceData &btData)
 			break;
 
 		processReset();
+#endif
 	}
 }
 
@@ -628,6 +650,7 @@ static void mriBindingExecute()
 	else
 		runRMXPScripts(btData);
 
+#ifndef __EMSCRIPTEN__
 	VALUE exc = rb_errinfo();
 	if (!NIL_P(exc) && !rb_obj_is_kind_of(exc, rb_eSystemExit))
 		showExc(exc, btData);
@@ -635,6 +658,7 @@ static void mriBindingExecute()
 	ruby_cleanup(0);
 
 	shState->rtData().rqTermAck.set();
+#endif
 }
 
 static void mriBindingTerminate()
diff --git a/src/eventthread.cpp b/src/eventthread.cpp
index 89704d0..b021732 100644
--- a/src/eventthread.cpp
+++ b/src/eventthread.cpp
@@ -294,7 +294,6 @@ void EventThread::process(RGSSThreadData &rtData)
 				rtData.rqReset.set();
 				break;
 			}
-
 			keyStates[event.key.keysym.scancode] = true;
 			break;
 
diff --git a/src/graphics.cpp b/src/graphics.cpp
index e640042..bad6eb8 100644
--- a/src/graphics.cpp
+++ b/src/graphics.cpp
@@ -420,6 +420,10 @@ struct FPSLimiter
 private:
 	void delayTicks(uint64_t ticks)
 	{
+
+		/* RETURN WITHOUT DOING ANYTHING */
+		return;
+
 #ifndef __EMSCRIPTEN__
 #if defined(HAVE_NANOSLEEP)
 		struct timespec req;
diff --git a/src/input.cpp b/src/input.cpp
index 22dab5d..73014c0 100644
--- a/src/input.cpp
+++ b/src/input.cpp
@@ -358,6 +358,17 @@ struct InputPrivate
 
 	void checkBindingChange(const RGSSThreadData &rtData)
 	{
+
+#ifdef __EMSCRIPTEN__
+		/* Run only once for emscripten. This is necessary due to *
+ 		 * a bug (in mutable?) that keeps reinitializing bindings */
+		static bool once = false;
+		if (!once)
+			once = true;
+		else
+			return;
+#endif
+
 		BDescVec d;
 
 		if (!rtData.bindingUpdateMsg.poll(d))
diff --git a/src/main.cpp b/src/main.cpp
index fcf03f2..ee06135 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -150,13 +150,16 @@ int rgssThreadFun(void *userdata)
 	/* Start script execution */
 	scriptBinding->execute();
 
+#ifndef __EMSCRIPTEN__
 	threadData->rqTermAck.set();
+
 	threadData->ethread->requestTerminate();
 
 	SharedState::finiInstance();
 
 	alcDestroyContext(alcCtx);
 	SDL_GL_DeleteContext(glCtx);
+#endif
 
 	return 0;
 }
@@ -345,6 +348,10 @@ int main(int argc, char *argv[])
 	/* Start event processing */
 	eventThread.process(rtData);
 
+#ifdef __EMSCRIPTEN__
+	return 0;
+#endif
+
 	/* Request RGSS thread to stop */
 	rtData.rqTerm.set();