The 'Hellzone Grenade' is an attack used by Piccolo in the fight with No. 17, after he had reunited with Kami-Sama. He surrounds the enemy with small, floating balls of chi and then forces them all to close-in on the enemy, creating an inescapable explosion. No. 17 survived the blast using an Energy Field.
Dragon Ball Online[]
This skill is learn-able from level 48 by Dark Warriors and branches off from the Demon Wave skill.
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