Thank You very much for the feedback. I am sorry for the key binding issues, thanks for pointing that out. I think I will at least make a post-jam update to the game that allows for configuring buttons, as well as change the player starting positions.
You are right about multiplayer being a risk, but making the game was an interesting exercise. Still, playing the game alone is a bit cumbersome, so I am glad that several people gave it a try anyway :-).