tip: the standard keyboard-layout for player 1 isn't suited for two-player, it's better if you 'split the keyboard in two'. that way the players won't get in each other's way.
Hey, thank you!
I fixed the default keyboard layout. Now both controllers have their keys bound by default, which is handy in this two-player game :)
You may have to click "Reset to Defaults" if you already played the game and let the default suboptimal binding.