Twin Cobra (listed here as its World arcade version) is a legendary 1987 vertical shoot ’em up developed by Toaplan. Piloting the TC-17 Twin Cobra attack helicopter, players must survive a blistering onslaught of enemy tanks, turrets, and aircraft. Distinctive for codifying many tropes of the modern “shmup,” it introduced the screen-clearing mega-bomb mechanic that became a genre standard and offers four distinct, upgradeable weapon types.
How to Play
Your objective is to reach the end of each stage while destroying enemy forces and avoiding incoming fire. The arcade controls use an eight-way joystick and two action buttons (Shoot and Bomb). In the browser, use the arrow keys to move, and Z and X for your actions. Press 5 to insert a coin, and 1 to start the game.
Tips
- Color code your weapons: Power-up icons change color on a cycle (Red, Blue, Green, Yellow). Time your pick-ups to get the weapon that suits your playstyle, such as the widespread Red shot or the powerful Green laser.
- Save your bombs: You start with three bombs. Use them not just to deal massive damage to bosses, but as a panic button to clear the screen of bullets when cornered.
- Watch for ground turrets: The game is notorious for fast bullets coming from ground installations right as they scroll into view. Keep moving to avoid being a stationary target.

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