Nice platformer. There is an (common) issue with the collision with wall, it stops you, and you can stay there for ever if you hold le key down. Player is probably too fast. Geometricness is here. Level can be challenging . I'm not sure about the relation to the theme, it would had been great to have it in the mechanic also. Though nice game.

Good first game. Here are my thoughts:

- Character moves a bit too fast I think

- Camera moves in such a static way, no panning, no smoothing, makes it hard to follow the character.

- Level 3 blue ramp down overlaps with the ground and it doesn't look pretty at all, might want to re-layer it.

- Level 3 where the 3 enemies roll into each other from the top and the sides, the left enemy doesn't kill you while the others do, which is weird.

- Music/sound would be good.

- Jumping is not good when touching/moving towards a wall.

That's all, I believe, polish these and you'd have a solid game :)

good game, the shapes are nice .  Add music to the game. The player goes  a little bit too fast.  

A cool idea!

Here's a list of my opinion that can make the game better:

- add music.

- make the player movement slower.

- set the friction of the player to 0 so that is will not stuck on walls.

Cool Platformer, But the physics were a bit broken and I found myself getting stuck. Good Games.