Originally Posted by Joe Mage

Wing Zero's Twin beam Buster rifle is more powerful than Wing's regular Buster Rifle and the Vayeate's Beam Cannon (despite it's near-limitless ammo thanks to that particle accelerator). The Zero's Rifle is capable of destroying entire colonies, something that the Wing's rifle and Vayeate's cannon can' do. Think of it like this, take a single-shot shotgun and a double-barreled shotgun, the single-shot is powerful enough on its own; but imagine gettin' both barrels from the double-barreled shotgun at the same time. It's not exactly a perfect analogy, but I think u catch my drift.