Yellow Devils is a single-player event match in Super Smash Bros. for Wii U. It takes place on Wily Castle, and the player controls Mega Man, and initially must defeat a Giant Pikachu and Yellow Devil in a 150 HP stamina battle. After 35 seconds, a Giant Pac-Man will appear and the player must defeat him as well.
This event is unlocked by clearing Family Ties. Completing the event does not unlock any further paths.
Completing the event on normal or hard difficulty within 90 seconds awards a Ray Gun Arm Cannon equipment.