I like the eyeball drop reducing vision as a soft punishment for screwing up but there's no reason not to just kill yourself or restart once you lose both eyes since there doesn't seem to be a way to recover them. The controls are fantastic. Obviously it is very hard and the difficulty curve could do with some tweaking, but just bouncing and sliding feels great as does all the options to tune your controls. The wheel menu also feels intuitive with the rest of the game. Not sure if the environments are placeholder or not but right now they're the most bland part of the game.