The concept is certainly interesting and has a ton of potential for puzzles. The art is quite nice, as are the puzzles, even if they're a bit easy. I don't really like the controls though. Why do I have to hold down space to control the other character? I feel like a toggle would have made much more sense. Also, why can't I use WASD? Arrow keys are a bit awkward to use in my opinion. Still a pretty nice game.