Zero removed the portable apparatus on his back. This portable apparatus that looked like a small safe was the standard equipment for the Hammer of Destruction. The portable apparatus had sonar grenades, time-lapse bombs, fragment grenade etc. The other spaces could be matched by the user according to his or her own needs. For example, the zero portable apparatus only had five reference units of Balabeam's special bullets, as well as 100 standard bullets and 100 armor-piercing bullets. There ...