I played both versions of your game and I think the level design is excellent. I really like how the mechanic of jumping to change the solidity of the platforms is introduced and used throughout. The platform challenges were a lot of fun and I liked the extra interaction with the wall jump ability very much

I'll keep you posted when I make my YouTube video, which all being well should be tomorrow

The jumping 'squishiness' is nice :D and I like the wall jump, where you can jump in the same direction again. The main mechanic is a great interpretation of the theme and I could definitely see this being taken further. I had no sound, so I presume that didn't get done in the time, but just a few blips and beeps would have benefitted the game, given the minimalistic design. Very nice work!

I really like how the player is animated, that jump animation fills really nice. the concept of changing the platforms each time one jump is really cool and makes us think the best way to solve the it.

But I I agree with @Dekels, I got stock in the first level too. no idea if there are more levels.