We experimented with different control schemes and the scroll wheel felt the most natural (but we might have mouse that are too high end)
We can probably set up a button remapping menu after the voting period is over, the game jam time was what it was and we didn't have time to implement it
(but right now if you download it and use a controller it should work with the shoulder button, if you play it as a non-steam game you can remap the controls yourself to anywhere on the keyboard, it's not the best but I hope this kind of helps)