diff --git a/milepost b/milepost
index bc03887..4b491ee 160000
--- a/milepost
+++ b/milepost
@@ -1 +1 @@
-Subproject commit bc0388714821eea6dd8a4e72bc24f2a899e9123f
+Subproject commit 4b491ee94a034d6a5a7d90a6f1a822a3d76b53f0
diff --git a/samples/pong/build.sh b/samples/pong/build.sh
index b7abf28..074ab18 100755
--- a/samples/pong/build.sh
+++ b/samples/pong/build.sh
@@ -21,6 +21,6 @@ wasmFlags="--target=wasm32 \
        -D__ORCA__ \
 	   -isystem ../../cstdlib/include -I ../../sdk -I../../milepost/ext -I ../../milepost -I ../../milepost/src -I ../../milepost/src/util -I ../../milepost/src/platform -I../.."
 
-$CLANG $wasmFlags -o ./module.wasm ../../cstdlib/src/*.c ../../sdk/orca.c src/main.c
+$CLANG $wasmFlags -o ./module.wasm ../../sdk/orca.c ../../cstdlib/src/*.c src/main.c
 
-python3 ../../scripts/mkapp.py --orca-dir ../.. --name Pong --icon icon.png --data-file data/ball.png module.wasm
+python3 ../../scripts/mkapp.py --orca-dir ../.. --name Pong --icon icon.png --data-file data/ball.png --data-file data/wall.png module.wasm
diff --git a/samples/pong/data/wall.png b/samples/pong/data/wall.png
new file mode 100644
index 0000000..47705ca
Binary files /dev/null and b/samples/pong/data/wall.png differ
diff --git a/samples/pong/src/main.c b/samples/pong/src/main.c
index d60bcaf..7d3cbf8 100644
--- a/samples/pong/src/main.c
+++ b/samples/pong/src/main.c
@@ -32,7 +32,8 @@ bool rightDown = false;
 
 mg_canvas canvas;
 mg_surface surface;
-mg_image image;
+mg_image ballImage;
+mg_image paddleImage;
 
 mg_surface mg_surface_main(void);
 
@@ -42,27 +43,41 @@ ORCA_EXPORT void OnInit(void)
 	surface = mg_surface_main();
 	canvas = mg_canvas_create();
 
-	//NOTE: file test
-	file_handle file = file_open(STR8("/ball.png"), FILE_ACCESS_READ, 0);
-	if(file_last_error(file) != IO_OK)
+	log_info("try allocating\n");
+
+	char* foo = malloc(1024);
+	free(foo);
+
+	log_info("allocated and freed 1024 bytes\n");
+
+	//NOTE: load ball texture
 	{
-		log_error("Couldn't open file ball.png\n");
+		file_handle file = file_open(STR8("/ball.png"), FILE_ACCESS_READ, 0);
+		if(file_last_error(file) != IO_OK)
+		{
+			log_error("Couldn't open file ball.png\n");
+		}
+		u64 size = file_size(file);
+		char* buffer = mem_arena_alloc(mem_scratch(), size);
+		file_read(file, size, buffer);
+		file_close(file);
+		ballImage = mg_image_create_from_data(surface, str8_from_buffer(size, buffer), false);
 	}
 
-	u64 size = file_size(file);
-	char* buffer = mem_arena_alloc(mem_scratch(), size);
-	file_read(file, size, buffer);
-	file_close(file);
-	image = mg_image_create_from_data(surface, str8_from_buffer(size, buffer), false);
-
-	file = file_open(STR8("/test.txt"), FILE_ACCESS_WRITE, FILE_OPEN_CREATE);
-	if(file_last_error(file) != IO_OK)
+	//NOTE: load paddle texture
 	{
-		log_error("Couldn't open/create file test.txt\n");
+		file_handle file = file_open(STR8("/wall.png"), FILE_ACCESS_READ, 0);
+		if(file_last_error(file) != IO_OK)
+		{
+			log_error("Couldn't open file wall.png\n");
+		}
+		u64 size = file_size(file);
+		char* buffer = mem_arena_alloc(mem_scratch(), size);
+		file_read(file, size, buffer);
+		file_close(file);
+		paddleImage = mg_image_create_from_data(surface, str8_from_buffer(size, buffer), false);
 	}
-	str8 test_string = STR8("Hello, world\n");
-	file_write(file, test_string.len, test_string.ptr);
-	file_close(file);
+
 
 	mem_arena_clear(mem_scratch());
 }
@@ -180,12 +195,17 @@ ORCA_EXPORT void OnFrameRefresh(void)
 
 	mg_matrix_push(transform);
 
+	mg_image_draw(paddleImage, paddle);
+	/*
 	mg_set_color(paddleColor);
 	mg_rectangle_fill(paddle.x, paddle.y, paddle.w, paddle.h);
+	*/
 
-	mg_image_draw(image, ball);
-	// mg_set_color(ballColor);
-	// mg_circle_fill(ball.x+ball.w/2, ball.y + ball.w/2, ball.w/2.);
+	mg_image_draw(ballImage, ball);
+	/*
+	mg_set_color(ballColor);
+	mg_circle_fill(ball.x+ball.w/2, ball.y + ball.w/2, ball.w/2.);
+	*/
 
     mg_matrix_pop();
 
diff --git a/sdk/orca.c b/sdk/orca.c
index d7517f0..4e8ae5f 100644
--- a/sdk/orca.c
+++ b/sdk/orca.c
@@ -6,8 +6,8 @@
 *
 *****************************************************************/
 
-#include"platform/orca_malloc.c"
 #include"platform/orca_memory.c"
+#include"platform/orca_malloc.c"
 #include"platform/orca_strings.c"
 #include"platform/orca_log.c"
 #include"platform/platform_io_common.c"
diff --git a/src/main.c b/src/main.c
index c4c98b2..46ee168 100644
--- a/src/main.c
+++ b/src/main.c
@@ -456,7 +456,21 @@ void* orca_runloop(void* user)
 	//NOTE: call init handler
 	if(eventHandlers[G_EVENT_START])
 	{
-		m3_Call(eventHandlers[G_EVENT_START], 0, 0);
+		M3Result err = m3_Call(eventHandlers[G_EVENT_START], 0, 0);
+		if(err != NULL)
+		{
+			log_error("runtime error: %s\n", err);
+
+			str8 msg = str8_pushf(mem_scratch(), "Runtime error: %s\n", err);
+			const char* options[] = {"OK"};
+			mp_alert_popup("Error",
+		               	msg.ptr,
+		               	1,
+		               	options);
+
+			mp_request_quit();
+			return((void*)-1);
+		}
 	}
 
 	if(eventHandlers[G_EVENT_FRAME_RESIZE])