Two new alien forms are introduced in this episode:
Feedback - used by 11-year-old Ben, he has the ability to shoot and absorb energy from his hands, tail and antennae. His species is currently unknown, but is believed by the fan-base to be an evolved "Megawatt"
Bloxx - used by 16-year-old Ben, he is an ape-like alien made entirely out of building blocks. He has the ability to shapeshift and regenerate, but his body can be easily destroyed with enough force. His primary colors are red, blue and yellow.