You must be overwhelmed with fixes and requests thanks to the Steam Sale, so this is just minor for me.
The F2 function works, but F1 does not. I press F1, it makes the ding noise, then nothing happens.
No priority here, add it to your back burner though.
EDIT, could you add infinite HP or something similar? I know I can't "lose" if I always move, but I like to overkill things.