The 2004 ComBots open was held from October, 8, 2004 - October, 10 2004. Unlike previous events it was exclusive to Heavyweights and Superheavyweights.
Competing Robots[]
| Weight Class | Robot | Team | Country |
|---|---|---|---|
| SuperHeavyweight | Buster | Crazy Susans Family | US |
| OUCH! | Organised Confusion | US | |
| Heavyweight | Final Verdict | Basher of Bots | US |
| I.C.B.M. | Nonsense | US | |
| Sewer Snake | Team Plumb Crazy | US | |
| Speedy | Team X-Bots | US | |
| Spinning Mayhem | Team Polecat | US | |
| Stormovik | Tank Buster | US |