Phaazoids attack by generating powerful pulses of Phazon energy. Because they are comprised entirely of Phazon energy, they are invulnerable to all forms of attack, save for Phazon-based weaponry. However, damaging them causes them to split into two smaller Phaazoids. Attacking them again causes them to split into even smaller entities which home in on targets and explode. There is a chance that a rare, red-colored variety is created from a splitting Phaazoid. These Red Phaazoids are stronger and harder to kill than normal Phaazoids.