The movement is too slippery and imprecise for the level of platforming the game asks of the player. There desperately at the very least needs to be a mechanic for safely climbing safely onto a ledge because as it is now, doing so sends you careening forwards, which is horrible when trying to climb onto small platforms. I also encountered a bug where I would press E and I would be teleported to the start of the room. This prevented me from progressing because I was no longer able to interact with a lever without teleporting to the start of the room. The muted color scheme also makes it hard to distinguish background from foreground. I do not see the reason for making the player collect their weapon in each level, and the energy blast is both too slow and seemingly ineffective. I do hope you continue to improve the game as I did like the art style and premise.