Freezeblast (Opposites)

Freezeblast is the Solotrix's DNA sample of a Cryoze from the planet-like star Cryos.

Ben as Freezeblast
Heatblast is a magma-based lifeform whose body is composed of a bright inner magma body covered by a dark red or brown rocks. As a fire-based entity, his body radiates high amounts of heat. His feet has a slight oval-like design with only two toes and one back toe. In Tourist Trap, it is shown that Heatblast's tongue is made of fire.

Four year old Heatblast looks the same as ten year old Heatblast in the original series, but with a much thinner body, oversized head and much higher-pitched voice.

In Ultimate Alien, Heatblast closely resembles Alan, only taller and not as skinny and slightly altered. His eyes were no longer connected to the fire on his head. The rocks over his body were darker, and their pattern was different, with fewer rocks covering his inner lava body. His voice sounds like Jetray's, except deeper.

In The Forge of Creation, ten year old Heatblast was almost unchanged from his appearance in the original series. However, his eyes were not connected to the fire around his head, and his Omnitrix symbol is green.

In Omniverse, sixteen year old Heatblast looks the same as in Ultimate Alien, only his eyes are once again connected to the fire on his head like in the original series, he is taller and muscular, his face's design is different and his shoulder plates are slightly tilt up. His voice sounds like Ghost Rider, a Marvel Comic Superhero.

In Omniverse, eleven year old Heatblast is shorter and much less muscular then his sixteen year old self.

When infected with a cold virus, Heatblast's fire and lava turn blue and replaces his pyrokinetic powers with cryokinetic powers instead.

Heatblast wears the original Omnitrix symbol/Ultimatrix symbol/Omnitrix symbol on his chest.

Gwen as Heatblast
Heatblast is leaner, her chest is larger, and her face is longer and more curved. Her forearms are considerably skinnier than Ben's Heatblast.

Heatblast wears the prototype Omnitrix symbol on her chest.

Kevin as Heatblast
Heatblast strongly resembles Ben's Heatblast in the original series, but is duller in color and lacks an Omnitrix symbol. The fire around his head is larger.