Nice idea to use different characters and switching between them to utilize their strenghts, the monkey one had a bit hard of an explanation on how it worked to "wall jump", otherwise pretty fleshed out tutorial. I would flesh out the rest of the game a bit more so you actually need to swap characters more often, nice game overall!
Would it be allowed for the game to have 2 button functions, but possible to be played for example on both A & D. But also <- & -> arrow keys? Same function but more accessible.
