Rash was a tracked invertible robot that entered Techno Games 2003 in the Assault Course. It was a renamed and repainted Panzer from Robot Wars: Series 3. The team had previously competed in the Football of Techno Games 2002 with Ravioli, which had worked with Technomoth.

It beat its former football partner in round 1 of the Assault Course before by almost a minute, eliminating the robot that came 4th the previous year. It lost to Sugar Plum Fairy in the following round.