The wall glitch is probably a collider problem, we’ll try to fix it as soon as the jam ends.
The swapping mechanic works by changing the level when you hit an enemy, the totem or a timer runs out. Unfortunately we did not have time to further its development due to the jams time constraints.
All in all, thanks for the feedback! We are pleased to know that you enjoyed the game. Stay tuned, for we will try to make it more presentable and polished by the end of the jam ;D