The Zero Knuckle (ゼロナックル Zero Nakkuru?) is a weapon Zero uses in Mega Man Zero 4, replacing both the Shield Boomerang and the rod weapons used in previous games. The Zero Knuckle consists of a Z-shaped chip implanted into Zero's palms. By punching enemies with the chip, Zero can rip off enemy parts and use them. A successful theft of such a part normally results in the destruction of most enemies, but some enemies like Yadokroid and Lamplort X will lose a part first. The weapons or parts can have a number of uses, and some have limited ammunition. If a stolen weapon is out of ammo or simply of no use any longer, it can be thrown away by pressing Select or in the pause menu, which can hurt an enemy as well. Since Elemental Chips have been omitted from the game, it's unknown if the Zero Knuc