Usually, parties at the Mushroom Kingdom involves crazy mini games and messes...
Today, they're going to take it easy and have a costume party instead.

Everybody is in costume, except for Luigi, he's afraid of Halloween costumes, even the harmless ones...
(He might change his mind once he sees Daisy's Hockey Player costume)

And if You're wondering... Yes, Yoshi is wearing his Pirate Costume from Mario Party 2.

Mario © Nintendo