Mags are small creatures that players can equip in the Mag slot of their inventory. Only one Mag can be equipped at a time. When fed items, the stats of a Mag will increase, contributing bonuses to that player's stats. Mags also have the ability to gradually "charge up" when their owner takes damage; this charge can eventually be unleashed in a devastating Photon Blast. In addition, Mags can confer bonuses upon their owners when a certain event occurs, such as temporary invincibility.