* Galacta Knight from ''VideoGame/KirbySuperStar Ultra'', who, despite merely being a BonusBoss for the VideoGameRemake, gained huge popularity with the fandom, particularly in the area of [[WildMassGuessing speculation]] regarding his relation to Meta Knight.
** Apparently, the higher-ups were savvy enough to pick up on this, as [[spoiler:Galacta Knight returns as a BonusBoss in The True Arena of ''VideoGame/KirbysReturnToDreamLand''.]]
* Meta Knight himself is also one, starting as just another boss in Kirby's Adventure, then became the focus of one of Super Star's games, then becoming a plot-important character in some games like The Amazing Mirror and Squeak Squad, became a playable character in ''Super Smash Bros. Brawl'' and returned in the next Smash Bros. game, and then became one of the playable characters in Return to Dream Land. He's absent from Triple Deluxe, for some reason. ([[spoiler: Although his dark counterpart returns as the final boss of Dededetour.]])
* Many of the enemies may also qualify, such as Waddle Doo and Knuckle Joe (who might both owe this to [[Anime/KirbyOfTheStars the anime]]).
* The one-shot characters from ''[[VideoGame/Kirby64TheCrystalShards Kirby 64]]'', such as Adeleine, Ribbon, and 02 have a TON of fanart for them. 02 may mainly have been popular due to being suprisingly symbolic for a Kirby game (he spits out blood) and due to his CrowningMusicOfAwesome. 02 even got a remix of his theme music in ''Brawl''. Ribbon's popularity is probably due to her [[ImpliedLoveInterest implied relationship]] with Kirby. Adeleine became a recurring character in the webcomic ''Webcomic/BrawlInTheFamily''.
* Bandana Dee, [[AscendedExtra who went from]] one-shot opponent in a ''Super Star'' minigame, to the confirmed identity of the Waddle Dee boss in the remake (with speaking parts!), to a playable character in ''VideoGame/KirbysReturnToDreamLand'', is gaining in popularity lately. Some {{Fanon}} even holds that he's the same Waddle Dee who partnered with Kirby in ''Kirby 64,'' just without his IconicItem.
** [[LampshadeHanging Hell, just take a look at his pause screen description in]] ''[[LampshadeHanging Return to Dream Land]]'' [[LampshadeHanging and the first words you'll see are "Hey, it's everyone's idol!"]]
** He's even become a very popular request for ''Super Smash Bros.'', and given how important he is nowadays, it's easy to see why some people thought he might have been a candidate to be put in.
* Kirby 64 is a Darkhorse game for the series. Aside from starring the aforementioned characters, it's a great aversion of PolygonCeiling, opting for a 2.5D presentation that keeps the gameplay unchanged, while providing some of the best animations and background art for the console. It possesses a fair amount of challenge while not being unfairly hard, and the popular mechanic of combining powers hasn't been seen since. Nowadays any game featuring character cameos or remixed music from the game is typically met with enthusiasm by fans.