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They are extremely flinch-resistant, usually requiring multiple headshots to be staggered. While attacking, they move about as fast as the characters' walking speed unless their Berserk state is triggered. Being hit by their attack results in an instant death and decapitation. Their only attack is entering a "Berserk" state where they wildly swing their chainsaw while approaching the player at surprising speed. One can be spawned by acquiring thirty consecutive kills in the level, while the other is activated once the player triggers him or is the first to attack him. Although a unique enemy, they actually only have slightly more health than the regular Chainsaw Ganado.
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They will also usually drop First Aid Sprays. Two Giant Chainsaw Men appear in Stage 4 and each are worth a base of 5,000 points when defeated. He is armed with a double-bladed chainsaw (which is actually a pair of chainsaws chained together) that has sparks and thick black smoke flying off the blades.
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The Giant Chainsaw Man appears similar to the other Chainsaw Men, but is actually significantly taller, and his clothes are dirtier and blood-stained.
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