Some robot competitions involve machines that are designed for specific tasks and include only transistors and diodes.

RoboGames is the world's largest open robot competition (according to the Guinness Book of World Records).

They've got this robot competition going for the mid-Atlantic states.

RoboCore - robot competitions in Brazil.

The 2009 prize fund is A$70,000 with a A$50,000 grand prize for the open category, making it the biggest current unmanned aerial robot competition.

Puck Collect is a robot competition where two autonomous mobile robots aim to collect small colored pucks randomly distributed in a square arena.

We cannot help but notice that most robot competitions (as well as most engineering professions) are overwhelmingly male in composition.

Team Osaka competes in various robot competitions and events around the world, such as Robocup (robot soccer).

The labor unions, of course, naturally opposed robot competition for human jobs, and various segments of religious opinion had their superstitious objections.

BattleBots is an American company that hosts robot competitions.