Urban Champion (universe)

The Urban Champion universe refers to the  series' collection of stages and properties that hail from Nintendo's early fighting game of the same name in which each player fights to knock the other player into a sewer manhole. It is the first 2D fighting game to be created by Nintendo and appears in the form of an eponymous stage in Super Smash Flash 2.

In Super Smash Flash 2
Despite being relatively obscure, Urban Champion is represented with one stage in Super Smash Flash 2 as an homage to being Nintendo's earliest fighting game.

Stage

 * Urban Champion: A stage consisting of the same sprites and layout used in the original gameplay of Urban Champion, taking place in a neighborhood in front of various buildings. With hazards turned on, the stage will scroll one building to the left or right when a KO occurs in the left or right blast line, respectively, similarly to the original game. Additionally, civilians will often drop flower pots from windows that players are standing under, and there are several open sewer holes in the road that players can fall into.