Mario Circuit - SmashWiki, the Super Smash Bros. wiki

Mario Circuit is a stage based on the course of the same name from Mario Kart 8 in Super Smash Bros. for Wii U and Super Smash Bros. Ultimate.

Super Smash Bros. Ultimate - Wikipedia

Mario Circuit - Super Smash Bros. Ultimate

Kirby - Super Mario Wiki, the Mario encyclopedia

Mario Circuit (Brawl) - Super Smash Bros. Ultimate Guide - IGN

Mario Circuit - SmashWiki, the Super Smash Bros. wiki

Super Smash Bros. - Zelda Wiki

Super Smash Bros.™ Ultimate for Nintendo Switch - Nintendo Official Site

Super Smash Bros. for Nintendo 3DS and Wii U - Pikipedia, the Pikmin wiki

Team Battle - SmashWiki, the Super Smash Bros. wiki, battle game in 5 seconds wiki

Mario, Smashpedia

Super Smash Bros. for Wii U screenshots (5/8/14)

Mario (SSF2) - Super Smash Flash Wiki