Saints HQ, Steelport (Saints Row 3).
See here for close-up images of the penthouse itself.
The Saints party in the background while the fight takes place on the pool deck, and helicopters occasionally fly by to use as temporary extra platforms.
Music: Warden Battle (Saints Row 4)

See here for close-up images of the penthouse itself.
The Saints party in the background while the fight takes place on the pool deck, and helicopters occasionally fly by to use as temporary extra platforms.
Music: Warden Battle (Saints Row 4)
Kagutsuchi Port (Blazblue).
A simple stage with a lot of people watching the battle, sometimes named Blazblue characters. Randomly day or night.
Music: Gluttony Fang (Continuum Shift)

A simple stage with a lot of people watching the battle, sometimes named Blazblue characters. Randomly day or night.
Music: Gluttony Fang (Continuum Shift)
Hakurei Shrine (Touhou Project).
The shrine itself can act as a platform, and it can be broken by battle like Luigi's Mansion.
Music: The Ground's Color is Yellow (Scarlet Weather Rhapsody)

The shrine itself can act as a platform, and it can be broken by battle like Luigi's Mansion.
Music: The Ground's Color is Yellow (Scarlet Weather Rhapsody)