I did use all the controls but still found it difficult. If you remove the lives and the number of switches available I might give it another go. It's already challenging enough without them.
I did, but unlike a first person shooter the mouse position doesn't matter and hence can be replaced by a keyboard button. I personally would've made W jump and Space switch universes.
I love Celeste, but there's a reason why there are no lives in Celeste. If your game is hard already you don't need artificial difficulty. I couldn't make it past the first screen.
