Ketsui: Kizuna Jigoku Tachi is a legendary vertical-scrolling bullet hell shooter developed by Cave, originally released for the Arcade in 2003. Renowned for its intricate scoring mechanics and intense difficulty, the game tasks you with piloting advanced helicopters through densely packed waves of military hardware. Instead of a traditional wide-spread arsenal, Ketsui emphasizes an aggressive lock-on system where destroying enemies at close range yields high-value multiplier chips, demanding daring maneuvers and precise dodging.
How to Play
Your objective is to survive the relentless barrage of enemy fire and destroy the stage bosses. The game utilizes standard Arcade inputs, typically mapped in the browser to the Arrow Keys for movement, Z to shoot, X to drop a bomb, Shift to insert a coin, and Enter to start. Tapping the fire button produces a wide spread, while holding it focuses your fire, locks onto targets, and slows your movement for tight dodging.
Tips
Mastering your movement speed is critical; use the focused lock-on shot to slow down when navigating dense bullet curtains. For high scores, aggressively push forward and destroy enemies at point-blank range to collect the highest value multiplier chips before retreating to safety.

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