Mario (SSB · SSBM · SSBB) · Luigi (SSB · SSBM · SSBB) · Bowser (SSBM · SSBB) · Princess Peach (SSBM · SSBB) · Dr. Mario (SSBM)

SSB: Peach's Castle · Mushroom Kingdom
SSBM: Princess Peach's Castle · Rainbow Cruise · Mushroom Kingdom · Mushroom Kingdom II · Yoshi's Island (technically in the Yoshi universe, but based off a game in the main Mario series)
SSBB: Delfino Plaza · Luigi's Mansion · Mario Bros. · Mario Circuit · Mushroomy Kingdom · Melee Stages: Rainbow Cruise · Melee Stages: Yoshi's Island (technically in the Yoshi universe, but based off a game in the main Mario series)

SSB: Bob-omb · Fire Flower · Green Shell · Starman · Red Shell
SSBM: Freezie · Metal Box · Poison Mushroom · Red Shell · Super Mushroom
SSBB: Banana Peel · Freezie · Golden Hammer · Lightning Bolt · Metal Box · Poison Mushroom · Super Mushroom