I use the space bar as my "UP" key (don't ask), and it is always stuck when I respawn if I die holding it. If I press it again it will unstick, but it's fairly annoying. A fix would be appreciated in a future release. Love the game so far, Thanks!

Spacebar is the respawn key. It is also the default vault key. Therefore I suggest (to pasik) that the respawn key (if possible) is handled either as the vault key, or in a way in which we can configure it.