I was thinking about making it so that when you jump onto a shell and press B you can flip the direction of the shell. Probably should do that.

I made it laggy so the player sprite can be aligned with the tiles to make collisions so much easier on me.

Yeah, I played it on my GameBoy and probably wasted most of my time. 

Thanks, I'm pretty sure it's not your browser I just made it like that because it's impossible to get right timing.

Yeah I tried to make the movement like Pokemon for the Gameboy, but I didn't have enough time to add in the animations.