This is a cool little concept for a rage game, but after one decent failed attempt at getting over the wall, I had to stop playing.
I think the main thing that needs work here is the camera. RIght now, it’s way too jittery and induced some vertigo for me. I think a thing that might already help would be to fix its height.
Controls were deliberately janky, but I think even with janky controls, you need to take some care to make them feel good. Right now, tiny changes in how long I held the mouse button seemed to have a huge influence on how the jump turned out. Maybe having a nonlinear curve here where the strength gain slows down the longer you hold the mouse button. Maybe some sort of visual indicator where your jump ends up going would be nice, even if that goes somewhat against the rage concept.
All in all, I think you have a pretty cool concept here that just needs some more polishing to turn into a fun game.