I tried to design the ultimate retro style party game and this is the result ^^
The intention is to have fun with friends, so there is an AI you can play with (and against), but please consider this a couch coop title.
Controllers are not required, you can use the keyboard (and share it with a friend as well), in true oldschool fashion.
You get three game modes and a lot of options to tweak everything to your liking. So you can adjust all game modes to your actual skills and make the action slower or faster and add more or less crazy powerup combinations.
If you want a cool little party game, that is a serious challenge as well, here it is !