The game uses a side-scrolling perspective across a sequence of combat stages. The objective is to advance through enemy-filled areas, defeat large targets, and survive platforming hazards while keeping the selected operative alive.

Players run, jump, aim in multiple directions, fire continuously, and collect weapon power-ups. A second player can join in cooperative play, and the four selectable operatives provide different starting weapon characteristics. The campaign has no major branching progression system; advancement comes from clearing stages and defeating their bosses.

Move cautiously through crowded sections instead of rushing into enemy fire. Keep firing while advancing, and use the character and weapon combination that best suits the current stage.

Save stronger weapons for dense enemy groups and bosses. In two-player mode, spread out enough to cover different angles without making it difficult for either player to recover after a death.