UniWar S is an early arcade fixed shooter released by Irem in 1980. Expanding on the classic Galaxian formula, you command a ship defending against repeating waves of descending alien insects. The game progresses through a cycle of distinct enemy types, from mosquito-like dive bombers and hovering attackers to more durable “rolling fire” aliens, demanding varied defensive strategies as you survive.
How to Play
Your objective is to clear each wave of aliens while avoiding their incoming fire and dive attacks. Move your ship left and right along the bottom of the screen using the arrow keys, and fire your laser upwards with the action button (typically Space or Z/X in the browser). Clear the cycle of four enemy types to advance to the next, more difficult round.
Tips
- Watch for Spies: In later stages, Demon Flies and Rolling Fires drop “Spy Aliens” when defeated or left alone. Prioritize destroying these quickly, as they will drop to the bottom of the screen and attempt to attack your ship from underneath.
- Double-Tap the Flies: Since Demon Flies spawn a Spy Alien when destroyed, be ready to fire a follow-up shot immediately to take out the falling threat before it reaches the bottom.
- Aim for Precision: The durable Rolling Fire enemies in the fourth stage can only be destroyed by a direct hit to their lower opening. Time your shots carefully instead of firing blindly.

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