Caesar was a boxy, silver and brown wedge-shaped robot armed with a double-headed axe and featuring a tubular/box-section chassis with bolt-on armour panels. The robot also featured several spikes along its front, sides, rear and top, while its shape and colour scheme gave it a passing resemblance to UK series competitor Derek.
Before being redesigned to use an axe, Caesar debuted at the Dutch Robot Games in 2003 as a simple wedge. Its competition fight was a rumble against H.A.R.R.Y. and No Fear 2, which was won by the former. Caesar's non-competition fight was a rumble against Philipper 2 and Sater 2, but it was quickly immobilised by the winner Sater 2.