Steam Roller has a unique body type. His thin yet muscular body is mounted on a large green wheel. He has long, warty arms. His hands have three fingers each. He has tubes along his arms and two on his face. He has horizontal pupils and a gas mask on his face. He has a large vent on his back.
The Omnitrix symbol is located on his gas mask.
- Enhanced Speed - Steam Roller can 'drive' at speeds faster than any Earth vehicle.
- Gas Projection - Steam Roller can expel toxic gases that can blind, disorient, and sicken opponents.
- Tar Creation - Steam Roller can create a sticky, black tar-like substance that can ensnare opponents.
- Water - Although water does not hurt Steam Roller, it can nullify his tar and gas.
- Steam Roller was the first commission alien added to the 5YL canon.