There are some interesting things going on here, like different surfaces that cause different walking physics. The speed was very high for me, and I couldn't go through the first challenge unfortunately.

I think this has a lot of potential, if you get to polish the player experience a little more so that we don't get frustrated too easily too soon.

Anyway this looks like a great submission, congratulations on getting this done in this short period!

Fun little jumping platformer game. Made me kind of dizzy because the camera was too zoomed in for the speed that the character was going so it made everything kind of whizz by. Good concept though.