* EnsembleDarkhorse: Two words: '''Splash. Woman.''' Mainly due to the fact she's the first (and only) female Robot Master.
** Jewel Man, Galaxy Man and Tornado Man are also surprisingly popular.
--> [[OverlyLongGag "And this time! And this time! And this time!"]]
* GameBreaker: the Jewel Satellite, possibly the best shield weapon in the series.
* MemeticSexGoddess: Again, Splash Woman.
* StrawmanHasAPoint: Wily does raise some good points about the morality of scrapping sentient robots, even if it's just to get slave soldiers to smear the name of his rival.
* TheUntwist: Don't act like you were surprised when it turns out Wily was behind everything. Especially if you read the achievements list.