All-Star Battle: Brawl
From SmashWiki, the Super Smash Bros. wiki
All-Star Battle: Brawl is a single-player event match in Super Smash Bros. for Wii U. The player is allowed to choose any character, and fights against the characters who made a playable debut in Super Smash Bros. Brawl, and were not cut since.
This event is unlocked by clearing Kirby's Crazy Appetite. Completing the event does not unlock any further paths.
Completing the event on normal or hard difficulty awards 5000G.