What are your plans on this, as it states 'demo'? :)
This version was for GDEX (a game developer convention) that was last weekend. This is demo works, but only has 1 map and needs all 4 players at once. We collected a lot of feedback over the weekend and I'll update this demo file. Hopefully in the next 6 months we'll release this as a standalone game with more maps, enemy AI (if you don't have 4 players) and more music.