Lego Battle Bots
A friend of mine and I both have Lego Mindstorms NXT kits. We've started competing them against each other in 'battle'. To win a 'battle' you have to push the other bot out of the ring or otherwise immobilize it.
The Wedge
Main Strategy: With the wedge as leverage, push the opponent out of the ring.
Features:
- Tread direct-drive system (one servo per tread)
- Servo in front can lift wedge to leverage or flip opponents
- Shield in back acts defensively
Here's a video of The Wedge in battle: