The game mainly plays as a side-scrolling shooter, with a few top-down stages mixed in for variety. Players control Bill Rizer or Lance Bean, firing their default weapon and collecting power-ups that change the arsenal into spread, laser, flame, and other weapon types. Characters can jump, crouch, cling to surfaces in some scenes, and use vehicles or heavy weapons during special sequences. Progress is stage-based, and surviving often depends on memorizing enemy patterns, managing weapon drops, and keeping pressure on bosses while avoiding dense projectile attacks.

Bill Rizer

One of the series' main heroes, a veteran soldier fighting the alien invasion.

Lance Bean

Bill's partner and fellow commando, fighting alongside him against the alien threat.

Protect strong weapon pickups whenever possible, especially spread-style weapons that help clear crowds. Learn when to crouch, jump, and short-hop to dodge low and mid-level fire. In boss fights, watch attack cycles first and then push damage during safe windows. In overhead stages, keep moving and prioritize enemies that spawn or fire continuously.

No widely accepted, reliable official cheat codes are commonly documented; progression is usually based on normal play and score chasing.

Tips and tricks

Do not risk a life just to chase a weapon upgrade if the screen is already crowded.

Tips and tricks

Mid-range positioning is often safer in boss fights because it balances offense and evasion.

Tips and tricks

In overhead stages, destroy enemies that keep spawning reinforcements as soon as possible.

User Reviews

Many players consider it one of the best run-and-gun games of the 16-bit era.

User Reviews

The difficulty is harsh but the controls feel excellent and responsive.

User Reviews

Its Mode 7 effects and stage variety made a big impression at the time.