Need

The game was played on the old huge arcade machines and had 4 yellow buttons a joy stock and two other buttons the case was.mostly green and the game had four playable characters but I think you could unlock more one was a guy with a three barreled shotgun a super jacked guy with arm cannon a black guy with a burst rifle a girl with a rifle single shot and the first lvl had yellow engineers and red guys with backpacks and laser guns there were secret keys and weapons you could pick up such as a green minig un blue rocket laumcher laser etc it used a save system to keep unlocks and had multiplayer with a second machine..please I want to figure this game out