Deadblow is a combat robot built and driven by Grant Imahara

Grant Imahara

Grant Masaru Imahara is a Japanese American electronics and radio control expert, best known for his work on the American television show MythBusters.-Education and early work:...

. It competed in BattleBots

BattleBots

BattleBots is an American company that hosts robot competitions. BattleBots is also the name of the television show created from the competition footage. BattleBots Inc...

 in the middleweight division using a fast pneumatic hammer as its weapon. Deadblow won 2 rumbles and was ranked number 2 among middleweights, right after Hazard. Afterwards, it went on with Grant to help in some experiments in the television series MythBusters

MythBusters

MythBusters is a science entertainment TV program created and produced by Beyond Television Productions for the Discovery Channel. The series is screened by numerous international broadcasters, including Discovery Channel Australia, Discovery Channel Latin America, Discovery Channel Canada, Quest...

and now is a member of that series' build team.