Really fun and polish game!
Every level I beat, I don't recover stamina, Sometimes I spend it all in one level just to lost imediatlly in another level them have to restart and win easily or just run for the exit.
I saw later that we can upgrade the samina, I think that's nice and could fix my complain, but would like a little reward (like + 5 stamina) whem completing a level and entering another. And I couldn't get past it because the game crashed every time when upgrading it, here's the print:
Sorry that I can't get you more info on the error right now.
Nice game!