The ultimate aliens are semi-playable; when your attack bar is full, depending the alien you are, your ultimate form is playable and is only for an ultra attack. * Ultimate Spidermonkey: is the beginning ultimate alien. His attacks are hitting the ground several times. His attack color is purple. * Ultimate Swampfire: is unlockable with Swampfire. His attacks are throwing blue fireballs to the ground. His attacks are blue fire colored. * Ultimate Humungousaur: is unlockable with Humungousaur. His attacks are shooting several red missiles at the enemy. His attack color is red.