A Bang is a mysterious organism. It grows as it gets shot, until finally it fires a charged blast at its focus before the bubble bursts, revealing the red core, its weak spot. It can also "possess" other enemies, but what exactly this entails is unclear. It bears a resemblance to Metroid Prime's nucleus. It also resembles the Phaazoid species and the Yameba, the latter possibly being an infected and/or X-mimicked version of the Bang.