Teams of college students from around the country shipped their robots in these crates to Mare Island Naval Shipyard in Vallejo, Calif., where they gathered last week for the BattleBots Collegiate Championship event. Having spent hundreds of hours, and in some cases, thousands of dollars, participants showcased their mad scientist skills and sent their heavy metal robots into combat against some incredibly dangerous and destructive machines.
Disclosure: CNET News is published by CBS Interactive, a unit of CBS. CBS College Sports Network is airing the BattleBots Collegiate Championship.
Editors' note: this gallery has been edited since publication to eliminate spoiler information.
When you're up against the power of some of these destructive machines, a three-minute match can seem like eternity. After pushing the button to signal your readiness and to start the match, that same button serves as a signal to surrender.