As for the leaving the game running problem, I spent 45 minutes on that and just figured out all the ways I could break the game. and after that I didn't want or have the time to experiment with adding more moving parts.

yeeeaaaa, I kinda forgot that scratch runs at 30 fps whereas httml5 can run a lot faster and that made the movement a little faster than expected. But it makes it much more difficult so in my opinion that makes it better