definitely the luigi mansion one, its so fun with friends. the zelda one is a close second though

definitely the dk one

I have no friends, so I Octopus Dance my loneliness away.

If i had friends over more often, id say Mario Chase. But i dont so ill go with Balloon Trip Breeze

Mario chase

Mario Chase and Luigi's Ghost Mansion.

best coop and best in general zelda, best singelplayer dk, best 1 v 1-4 luigis mansion

also the legend of zelda