Fun idea! I found it very hard to aim, given that the move keys immediately set the rotation of the player. I really like the idea of different progressions if you choose to drink the radiated water! However, once I drank enough that the controls were randomized, it was completely unplayable since I had no control over the player. The progression thing is a really good idea, just need to careful what types of changes they'll make to the player!
Nice job!