Thanks for the feedback! Developer secret: Space is already part of the default input map if you want to use it without remapping. I did put some thought into making the bite of defeat a bit less (restarting the day instead of the whole game, and making each day only a minute long) to try to incentivize people to say "just one more try..."
I tried to be a bit humorous, since the set-up is a bit absurd, so I'm glad some of my humor meshed well with some players.