Armed Police Unit Gallop (also known internationally as Cosmic Cop) is a 1991 arcade shoot ’em up developed by Irem. Set in the same universe as the legendary R-Type series, you pilot the R-11B Peace Maker hover-craft through five zones to hunt down heavily armed rogue vehicles called “Mad Cars.” What sets this game apart from traditional horizontal shooters is its racing-inspired scrolling mechanic: moving your ship to the right side of the screen significantly increases the scrolling speed, rewarding you with massive time bonuses while demanding rapid reflexes to survive the escalating hazards.
How to Play
In your browser, you can insert virtual coins and start the game using the Shift (Select/Coin) and Enter (Start) keys. Control the Peace Maker’s movement and adjust the screen’s scrolling speed using the Arrow keys. Use Z to fire your primary vulcan cannon and ground-targeting missiles, and press X to unleash your ship’s signature lock-on laser, which automatically targets nearby enemies but drains your energy meter.
Tips for Success
- Manage your speed: While pushing forward earns you higher completion bonuses, moving too fast in tight corridors will inevitably lead to crashing into walls or enemy crossfire.
- Use the lock-on laser defensively: The homing laser is incredibly powerful against shielded enemies or bosses that move erratically. Let it recharge fully before tough encounters.
- Watch your altitude: Many of the “Mad Cars” and ground turrets can trap you. Use your missiles to clear the lower path safely while maintaining enough height to dodge.

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