-It's gonna be awesome.
I'm just so excited.
I am so excited.
-Thomas Cook is one of 940 competitors from 14 different countries with battling bots at this year's RoboGames.
-I live for this.
I mean, I wake up everyday and it's robots!
-RoboGames is structured like the Olympics for robots.
We have 70 different events.
-But the main event is combat
where bots from different weight classes battle it out until one is destroyed.
-I just love seeing them blow up.
We're-- We're gonna build something that kills stuff.
-You get points if you're being aggressive and you also wanna inflict damage, but not sustain too much.
-Even though some teens spend tens of thousands of dollars building their bots, they never see that money come back to me.
The grand prize for winning RoboGames?
Fame and bragging rights.
But these competitors are here for the passion of the sport.
Robots are really, really awesome, and heart wrenching, and headachy, and addictive; and I love them.
-Next year, I'm going to college for material science and engineering and that's what this is.
-Now, the goal is simple.
Fight to the death.
In San Francisco, I'm Kara Tsuboi, cnet.com for CBS News.