I really enjoyed your use of mechanics to great puzzles and challenges. I found the walls quite stick which was helpful to press the button if i mispressed the wrong shape :D Very nice overall. Would love sound sounds and sound effects but thats okay. Very good job, let me know when level 3 is available as I would like to play more.

It's important to give some thought to your control scheme. Pressing 1, 2, or 3 while also using WASD for controls is very awkward. It might have been better to map the shapes to buttons used by the right hand, or to use the arrow keys for movement.

In the tutorial it was also quite frustrating to step off the ledge after squeezing as the square, only to then end up falling near the spike with little to no warning, the first time around. You need to give your player a chance to react.

Great concept and nice aesthetic! 

Although the jumping was a lil' bit buggy on certain platforms for me, the core mechanic was a great idea. I'd love for there to be a second level haha!

Some sound feedback would also make this game cooler and make those lil shape changes in the air that much more fun :D

Awesome job :)