Really nice and disturbing visual style, felt really crazy. UI is a bit unintuitive and requires to pay a lot of attention to backgrounds of your characters to figure out which one is selected (for changing weapons and that stuff). Also I had to pull volume all the way down as some of the SFXes, like falling through a hole in a ground and taking damage from the traps were so loud.
Loved the idea that each party member has a certain function and loosing any of them actually reduces your party utility, that is really cool.
Great job!