Viral Visitors is a co-op event match in Super Smash Bros. for Wii U. In it, player 1 controls Dr. Mario and player 2 controls Peach in a white alternate costume. They have 2 minutes to defeat 4 Dark Kirbys in their "unmasked Meta Knight" costume. Two Kirbys initially fight but more appear when one is defeated. The players have two stock while the opponents have one.