I like the idea and the sheer variety of controls than it can change to is crazy. It's neat to be using the F11 and F12 keys to move, definitely gave me a chuckle. But I did run into a bit of a problem- after it rebound the escape key to let me move the game stopped letting me exit fullscreen, which meant I actually had to shut off my computer to power off. I'd also suggest you make the font for the control changes bigger, and possibly have it scale with screen size- I suggest this tutorial https://www.youtube.com/watch?v=95q79j0lNYA for how to do that in Unity (I used it in my game, it helps to account for different computers a bit). Still though, nice job!