nice little game, i see that you said this was only done in 2 days at the end of the jam so for that its not bad at all! I loved the CRT Curved TV type effect, normally you don't see it in platformers but it made it feel unique, first time I fell down I was like woaaahhh.
Obviously i can tell a some things can improve(can get out of bounds, level timer, reptitive wall background etc) but i guess it was because you were out of time. but the stuff you did implement work pretty well. Good job!