In RoboRumble these days, having 0 losses is not common because the number of strong bots makes it unlikely you'll beat all of them. Also, being "Undefeated" does not make you "TheBestBot" necessarily ;-)
Nice page. =) Might be cool to make this a table with links to screenshots. Also, I think WeeksOnEnd was once undefeated in MiniBots, and Komarious might've been, too, but I can't remember for sure. -- Voidious
Adding MarioBros and GeminiTeam for TwinDuel, as I know they each had a period of being unbeatable. Both LuminariousDuo and LunarTwins might've had similar stretches, but I need to look into it and see if they were really "undefeated" during those stretches. -- Voidious
I know LunarTwins was undefeated for a short moment in TwinDuel, but with how quickly Kev countered that with upgrades to GeminiTeam I'm not sure if it really qualifies. A table with links to screenshots would probably be a good format for this, though I don't have enough screenshots to be worth converting it right now. If some other people have screenshots of things like Duelist and Phoenix being undefeated though, indeed that would be good. :-) -- Rednaxela