Nice way to introduce the game, the ambiance, the sound and music is very good. Interesting mechanics, I like the way you used the theme !

I get really poor framerate in firefox

Really good mood but kinda slow even in chrome

Nice prototype overall remembering is a compo game. With more time I sure you can make a good final game.
I have no problems with framerate, maybe the sensation about physics is close to underwater gravity.

This game is amazing. Although it is more color-shift than shapeshift, I really like the mood and music. I reached only the 28th sunspeck before falling into the game-over-void, but I'll try again.

Page wouldn't load, couldn't play. Try hosting elsewhere?

Really cool ! Kind of disapointed by the game over when falling off the side of the world. I like the mood and the mechanics.

Interesting premise, but unfortunately the poor contrast between the background & platforms along with some dodgy collision checking put me off. Doesn't *technically* follow the theme of SHAPEshift, but I really enjoyed the atmosphere you created.

This is a really solid game with 5-star mood, though occasionally there were small glitches in the platforming. Love that the page background color changes.

Also, best tutorial ever.

About the slowness, it's probably caused by lots of putImageData use - it kills performance when data is shuffled between CPU and GPU. In a way it's not that bad to use it in a prototype like an LD game, but even then it would be better to at least collect all the tiles you're going to change inside a frame inside a single buffer and then do a single putImageData call per frame.