Platform(s): NES (most probably)
Genre: Action, RPG, Side Scroller
Estimated year of release: 1990s - early 2000
Graphics/art style: 2D, Graphics comparable to contra force
Notable characters: 3 playable character (you use them all in single gameplay,ie u choose other character when one dies till all three dies),
melee male character, cowboy style male character(shooter), a female character(forgot her speciality)
Notable gameplay mechanics: 1st level: Through rooftops of multiple houses, 2nd level : Inside of some building/castle, 3rd lvl : china town(u can go inside some rooms in 2 and 3 lvl)
never played past 3rd lvl so don't know what lies afterward(my machine stopped working)
Other details: I had the game in Japanese language