Dragon Ball:
Planet Namek (Normal, Destroyed)
West City (Normal, Future Ruins)
Tournament of Power
Rocky Fields (Evening)
World Tournament Arena
Cell Games Arena
Islands
Space (Earth, Planet Vegeta)
Underground Lake
Land of the Kais
Spinach Wastes
Wasteland (Dusk)
Hell
Pod Landing/Frieza's Spaceship
Galactic Arena
Prison Planet
RWBY:
Amity Coliseum
Beacon Academy (Normal, Overrun, Future Restored)
Beacon Tower (Normal, Destroyed)
Haven Academy
Vale
Vacuo
Atlas
Mistral
Shade Academy
Atlas Academy
Mountain Glenn (Normal, Destroyed)
Emerald Forest
Abandoned Temple
Patch Island
Vytal Island
Summer's Grave
Argus Limited
Argus
Domain of Light
Land of Darkness (Salem's Domain)
Naruto:
Hidden Leaf Village
Hidden Sand Village
Hidden Cloud Village
Hidden Mist Village
Hidden Stone Village
Hidden Rain Village
Forest of Death
Konoha
Academy
Valley at the End
Valley of Hell
Genbu
Hokage Rock
Senran Kagura:
Hanzo Academy
Gessen Academy
Hebijo Academy
Training Grounds
Sensoji Temple Grounds
Festival
One Piece:
Alabasta
Great Kingdom
Grand Line
East Blue
Elbaf
Germa Kingdom
Momoiro Island
Goa Kingdom
Sorbet Kingdom
Ryugu Kingdom
Mokomo Dukedom
Thousand Sunny
Attack on Titan:
Wall Maria (Normal, Destroyed)
Wall Rose (Normal, Destroyed)
Wall Sina
Utgard Castle
Capital Mitras
Ragako
Industrial City
Our World (Earth):
New York City/Times Square
Rome/Coliseum
Matterhorn/Alps
Easter Island
Hong Kong
Tokyo
Great Wall of China
Himeji Castle/Japan
San Francisco/Golden Gate Bridge
Mayan City
Paris
Beyond The Worlds:
World Of Light
World Of Darkness
The Final Battleground
Edge Of Time And Space
Times Square (Astral)
Planet Namek (Astral)
Beacon Academy (Astral)
Hidden Leaf Village (Astral)
Hanzo Academy (Astral)
Alabasta (Astral)
Wall Maria (Astral)
The Final Battleground (Astral)
What you've seen was a few of many fighters, worlds, and fighting stages! And for each world, there is a special story mode! I haven't figured out much, but here are some story fights!