To unlock these mini-games, catch rabbits at the following locations as Wario:
Giant Snowball Slalom-In the alcove opposite Rainbow Ride.
Bingo Ball-On the right side of the castle when facing it. (Near the trees)
Coincentration-Near the entrance to Whomp's Fortress.
Intense Coincentration-Near the entrance to Tick-Tock Clock.
Lakitu Launch-Near the entrances to Tiny-Huge Island.
Psyche Out-In a corridor near Lethal Lava Land.
Slots Shot-In the courtyard behind the fountain.