Double Trouble

Double Trouble is the final boss of Sonic Boom: Fire & Ice. It was a massive robot constructed by D-Fekt from the fire and ice elementals on Ragna Rock to battle Team Sonic.

Appearance
Double Trouble is a giant made of lava and ice that do not cancel each other out somehow. It generally resembles a four-legged, two-headed dragon with no wings. It has stubby legs with claws, a round torso, a long tail with D-Fekt on its tip, and round heads with serrated mouths, long necks and horns. Its left head is made of ice with a large middle eyes and two dots beside it, and curved horns, while its right head is made of lava with two normal eyes and two dots between them, and more swirly horns. Being held together by D-Fekt's powers, its joints are not physically connected.

Sonic Boom: Fire & Ice
Double Trouble was created by D-Fekt to destroy Team Sonic after they intruded on Ragna Rock. Despite putting up a good fight, Double Trouble was defeated by Sonic and Sticks. Additionally, its creation and desolating powers utterly destroyed Eggman's Ragnium mine.

Powers and abilities
Double Trouble is perhaps D-Fekt's most powerful construction to date, its presence alone creating a rain of desolation upon Ragna Rock. It has a powerful fire breath and ice breath for its respective heads which gives it the ability to merge fire and ice together to create meteors. These meteors are highly explosive, the strongest of which can release shockwaves of fire and ice upon detonating. Its two heads also have lethal bites.