From SmashWiki, the Super Smash Bros. wiki
Getting Healthy is a co-op event match in Super Smash Bros. for Wii U. In it, player 1 controls Little Mac and player 2 controls Wii Fit Trainer, and must defeat Kirby and Pac-Man in a Stamina Battle. The players have 100 HP, whereas the opponents have 150 HP.
Completing the event within 40 seconds awards a Picky Eater Clothes equipment.