Invertible robots are a type of robot which are designed to run in both upright and inverted positions. The first competitor of its kind to appear in Robot Wars was Series 1 Grand Finalist T.R.A.C.I.E., while the most successful include Series 6 champion Tornado, Series 7 runner-up and Third World Champion Storm 2, Series 9 champion Carbide, and Dutch series champions Slicer and PulverizeR, among countless others.