When Worlds Collide
Aliens are attacking the planet! Use technology created by research teams in multiple universes to fight back!
This game might be best described as playing several classic arcade games on the same screen at the same time. Objects from the games are able to interact with each other, which can either be a great help, or a great hinderance.
This game is a Ludum Dare entry, but an enhanced edition with more game mixes and more polish is being planned.