Has issues that made it unplayable
I dont want this be be a bug list, but hopefully this will help others / developer make this better.
The ADs will fail to load in Firefox and the game will stop ("game will continue in 5 seconds" forever).
The quality settings are a good Idea, but if you set to high you need to reload for low to see the performance inprovement.
The directions can sometime stick (i.e. tap left and you might keep going left).
Overall it looks like a huige ammount of effort, but after 10 min of trying to diagnose what was going on, I'm sorry but, I gave up.
Programming: Off hand I think the problem is code being inside enter frame that should be linked constantly loaded. Holding the directions works better (i.e. more than one frame), where tapping can often result in failure.
My computer isn't great (5.9 Windows Rating), but this game has too many issue to be enjoyable for me. Still, I think than many could fing it good, hence the 5/10.
Keep it up.