Smash stage renaming frenzy, let's go:
Peach's Castle 64 "Sky Castle Contraption"
Dream Land 64 "Whispy Woods"
Rainbow Cruise "Rainbow Ride" (better name, don't @ me)
Jungle Japes "Cranky's Shack"
Temple "Hyrule Temple" (everyone calls it that anyway)
Yoshi's Island (Melee) "Dinosaur Land"
Yoshi's Story "Storybook Island"
Mushroom Kingdom 2 "Subspace"
Mushroomy Kingdom "Dilapidated Kingdom"
WarioWare, Inc. "Variety Tower"
Smashville "Animal Crossing"
Mario Bros. "Shellcreeper Sewers"
Hanenbow "Hanenbow Habitat"
3D Land "Gimmick Kingdom"
Paper Mario "Paper Mario Story"
Unova Pokémon League "N's Castle"
Prism Tower "Lumiose City"
(I want to rename Balloon Fight but can't come up with anything)
Streetpass Quest "Dark Lord's Castle"
Tomodachi Life "Mii Apartments"
Mushroom Kingdom U "New Mushroom Kingdom"
Mario Galaxy "Gateway Galaxy"
The Great Cave Offensive "The Great Cave"
Gamer "Gamer's Room"
Town & City "Let's Go to the City"
Gaur Plain "Bionis' Leg"
Duck Hunt "Hunting Grounds"
Wrecking Crew "Demolition Site"
Pilotwings "Pilotwings Islands"
Super Mario Maker "Course World"
Minecraft World "New Seed"
Peach's Castle 64 "Sky Castle Contraption"
Dream Land 64 "Whispy Woods"
Rainbow Cruise "Rainbow Ride" (better name, don't @ me)
Jungle Japes "Cranky's Shack"
Temple "Hyrule Temple" (everyone calls it that anyway)
Yoshi's Island (Melee) "Dinosaur Land"
Yoshi's Story "Storybook Island"
Mushroom Kingdom 2 "Subspace"
Mushroomy Kingdom "Dilapidated Kingdom"
WarioWare, Inc. "Variety Tower"
Smashville "Animal Crossing"
Mario Bros. "Shellcreeper Sewers"
Hanenbow "Hanenbow Habitat"
3D Land "Gimmick Kingdom"
Paper Mario "Paper Mario Story"
Unova Pokémon League "N's Castle"
Prism Tower "Lumiose City"
(I want to rename Balloon Fight but can't come up with anything)
Streetpass Quest "Dark Lord's Castle"
Tomodachi Life "Mii Apartments"
Mushroom Kingdom U "New Mushroom Kingdom"
Mario Galaxy "Gateway Galaxy"
The Great Cave Offensive "The Great Cave"
Gamer "Gamer's Room"
Town & City "Let's Go to the City"
Gaur Plain "Bionis' Leg"
Duck Hunt "Hunting Grounds"
Wrecking Crew "Demolition Site"
Pilotwings "Pilotwings Islands"
Super Mario Maker "Course World"
Minecraft World "New Seed"
Does Pac-Maze count