All-Star Battle: Secret - SmashWiki, the Super Smash Bros. wiki

All-Star Battle: Secret is a single-player event match in Super Smash Bros. for Wii U. In it, the player must choose a character and take on the fighters who were unlockable in previous Smash Bros. games. The first are the first four unlockable characters who have been in every Smash Bros. game, though

Greninja (Super Smash Bros.) - Bulbapedia, the community-driven Pokémon encyclopedia

Toon Link (SSB4) - SmashWiki, the Super Smash Bros. wiki

Kirby - Super Mario Wiki, the Mario encyclopedia

JoJo's Bizarre Adventure: All-Star Battle - JoJo's Bizarre Encyclopedia

Super Smash Bros. Object Shows: Rebirth, Object Shows Community

Ganondorf (SSBB) - SmashWiki, the Super Smash Bros. wiki

List of Trophies in Super Smash Bros. (Wii U), Smashpedia

Solidarity - SmashWiki, the Super Smash Bros. wiki

Super Smash Bros. Brawl - Super Mario Wiki, the Mario encyclopedia