Okay, detailed feedback. Hope you do the same for my game.
1) The movement. You should've definetely work more on movement systems, because your game is all about it. They feel bit sloppy and shandled. Main reasons are: too slow countermovement, so character slides off the small edges and disabled movement while in the air.
2) Music didn't loop. Game went silent when music stopped :)
3) Graphics look nice, but there is the point where you have to jump off the bouncy platform. I didn't realize that, because there wasn't any background or some "air" effects to relate my position to. Took some time to figure that out.
4) The Xray mechanic. It should definitely be permanent, and shouldn't have any cooldown. Liked the implementation tho. Works good.