Pretty much the only thing I had a problem with was the default controller mapping. 

Whenever I enter a room and immediately need to shoot, I tend to accidentally jump.
There have also definitely been points where I've needed to jump, but accidentally shot.

Also one other thing, since Yuudai's interact animation is just them crouching, maybe you could make it that a regular crouch can also pick up items on the floor? By extension, maybe pushing up could interact with other stuff, such as locks and people? However that's just a suggestion and I think the way it currently works is just fine.