The Pi Wars robotics competition took place this weekend at Cambridge University's Computer Lab.
All the robots were controlled by the Raspberry Pi - a little Cambridge computer created to help children learn programming skills.
Among the challenges competitors faced over the two-day battle were obstacle courses, a maze, speed test and Pi Noon, 'a non-destructive robot-on-robot duel'.
Michael Horne, a spokesman for the event, said: "The Raspberry Pi is a local story in itself: designed in Cambridge, manufactured in Wales and run by a team on Station Road in Cambridge, the Raspberry Pi Foundation is an educational charity which works to put the power of digital making into the hands of people all over the world, so they are capable of understanding and shaping our increasingly digital world, able to solve the problems that matter to them, and equipped for the jobs of the future."
The event, which is in its third year, let people build their own robots and then pit them against each other in a battle in an attempt to win prizes.
More than 60 teams competed across the two days. Saturday was for school teams and today (Sunday, April 2) was a chance for a mixture of beginners, intermediate level and pros to take part.
The event has proven so popular that it had to be spread over two days.