Hahah ok I get that, I did something similar with my previous jam submission tbh.
For the levels scaling, if you don't want to spend too much time on it maybe just lowering the camera zoom a bit would do the trick ?
I have the same problem of not-bouncing on walls in my submitted game. I coded a bounce on the character but removed it 5mins before submission because at some places in the game it was more annoying than fun ><
You can DM me if and when you issue an improved version, I'll be happy to play your game again !