I got stuck after picking up the purple thing in the second room. I was able to walk, jump, toggle state, and interact/advance (E) just fine, but I couldn't climb, attack, block, dash, or sprint, no matter which state I was in, nor did I understand what the different states actually meant. Maybe my game was bugged? There were times that a white border would appear on the screen that looked like they were supposed to be hints or something, but I didn't see anything.
It seems like this game has a lot to offer as the opening presentation is great, but unfortunately I can't reach it. Either this was submitted in an unplayable state, or the way to proceed just isn't conveyed well enough. I would love to see this improved, though! Also, being able to change keybinds is something I'm always excited to see in a game, as it's a great basic accessibility feature.