Played for roughly 10m.
don't bind to Z and Y, thank you.
If your Game has no Mouse Control for Gameplay, don't make the Menues Mouse Controlled.
Other then that, I don't get it. I'm assuming it's a Game where you're ment to solve Puzzles using two Characters with different characteristics, but I just walked to the end with both characters in each Level I played without any hurdle where I needed to switch between them, and there was no Reason to ever use Commands to order my Partner, I just switched between them whenever I passed an Area to redo it again with the other one.
Story in the beginning is badly written I think.