about the screen bugs, i have no idea how this happened and how to fix that, but i will check and try to solve that problems for future game jams ( i think it was because i set the resolution to be always 16:9 or something like that).
anyway thank for your feed back! also your game is one of my favorite games in this jams :D
the game idea is really cool and the collecting mechanic is very interesting. my only issue was the controls, a bit frustrating to move. you should build a real game out of this.
the wall jump thing is correct, but there is no hidden mechanic, you just need to take the coins in the right order, and preform a wall jump when ever you can, the hardcore are hard mainly because they have a small trick that you need to figure(for example the in first hardcore you need to combine both paths).
