Lemmy Koopa

Lemmy Koopa is one of Bowser's eight children; despite being the second oldest of the Koopalings, Lemmy is rather small in size, he also has a rainbow Mohawk and a lazy eye.

Super Mario Bros. 3
Lemmy's first appearance in a game was in Super Mario Bros. 3, where he, along with his siblings, aided Bowser in his attack and conquest of the various lands of the Mushroom World. While his brothers and sister took over other lands, Lemmy attacked and conquered Ice Land, stealing the Magic Scepter of the land's king and subsequently turned him into a seal (or Monty Mole, depending on the version of the game).

Like the other Koopalings, Lemmy could be found and battled by Mario in the cabin of his Airship; in battle, Lemmy would attack by hopping around the room on a rubber ball and trying to blast Mario with his stolen Magic Scepter; being jumped on the head three times would defeat Lemmy, allowing Mario to reclaim the Magic Scepter of Ice Land's ruler.

Super Mario World
After the events of Super Mario Bros. 3, Lemmy next appeared in Super Mario World, aiding his family in their attack on Dinosaur Land; when Dinosaur Land was taken over, Lemmy inhabited the Vanilla Dome in a castle, where he guarded a kidnapped Yoshi trapped in an egg.

In his battle against Mario, Lemmy wouldn't act the plumber directly, instead he would simply pop out of a Warp Pipe in his chamber, along with two Lemmy look-a-like dolls. Mario would need to jump on Lemmy's head three times to knock him out of the end of his Warp Pipe and into the lava below, avoiding the fake Lemmys as well as a bouncing Podoboo.

Yoshi's Safari
In Yoshi's Safari, Lemmy once again aided his family in attacking another land, this time, Jewelry Land. When Bowser took over Jewelry Land, Lemmy was given custody over Grassland and was given a magic gem to guard.

In his battle against Mario and Yoshi, Lemmy would ride in a large mech resembling a humanoid Koopa Clown Car equipted with five cannons; after sustaining heavy damage from Mario's Super Scope, Lemmy would lose the use of his center cannon and begin to hop around the battlefield; eventually, after being damaged some more, Lemmy's mech would explode, flinging the Koopaling over the horizon.

Hotel Mario
In Hotel Mario, Lemmy and his siblings aided Bowser in his plot to steal away Princess Peach and to hide her in several hotels which the Koopa family had taken over, along with the Mushroom Kingdom. After his brother, Larry is defeated by Mario and Luigi and his hotel explodes, Princess Peach is flung into the clouds and into Lemmy's High-ate Regency Hotel, where Lemmy takes possession of her.

In this battle, Lemmy, located "Lemmy's Sky Hideout", would attack Mario by throwing paper planes at him while flying to different hotel floors, using a helicopter pack; to defeat Lemmy, Mario would need to close all the doors in the area. Once Princess Peach is rescued from him, Lemmy would attempt to chase after her, Mario and Luigi, only for him and his hotel to be blown away by a large fan activated by Mario.

Mario & Luigi: Superstar Saga
After several years of absence, Lemmy made a return appearance in Mario & Luigi: Superstar Saga; after she hijacked Bowser's Castle and began to use it to attack Beanbean Castle Town, Bowletta employed Lemmy and his siblings (except Bowser Jr., who was conspicuously absent) to guard the various halls of the castle.

When first encountered by Mario and Luigi, Lemmy would try to confuse them by using Goombas disguised as him to make three extra copies of himself; in order to engage in battle with Lemmy, Mario or Luigi would need to hit him, not a copy, with their hammer.

Other Appearances
Though Lemmy doesn't appear in Mario is Missing!, it is mentioned in the PC version of the game that he did indeed travel to Earth with Bowser and his siblings; instead of aiding Bowser in his plot to melt Antarctica though, Lemmy simply decided to play in the snow and ice.

In LazerBlazer - Type A: Intercept mode of the game Super Scope 6, Lemmy, along with Mario, makes a small cameo in the game. Lemmy can be seen occasionally riding a missile in the game, and if players blast him out of the air, they will either recover a miss or gain points.

Anime
Lemmy, as well as his siblings were featured in the Super Mario Amada Series, a set of three Japanese OVAs. In the Mario retelling of the story "Momotaro", Lemmy and his siblings appear as minions of Bowser, aiding him in abducting Princess Toadstool. In "Shirayukihime (Snow White)" Lemmy also appears as a minion of Bowser once again, like his brothers and sister, Lemmy ends-up being beaten by Mario.

Cartoons
In the DiC Entertainment cartoons, The Adventures of Super Mario Bros. 3 and Super Mario World Lemmy was prominently featured. In these cartoons, Lemmy was renamed Hip Koopa and would often hang-out and pull pranks with his brother Hop Koopa, whom he was twins with. In the continuity of the cartoons, Hip and Hop were the youngest Koopalings, and were portrayed as six-year-olds, while the rest of the Koopalings were in their teens. In the cartoons, Hip had thinner hair than Lemmy and had a large overbite.

Publications
Lemmy also appeared in the Nintendo Comics System and Nintendo Adventure Books; out of all the Koopalings, Lemmy appeared the most times in Nintendo Comics System. Lemmy was also featured in the Super Mario Adventures comic. Here, he aided Bowser in his plot to marry Princess Toadstool.

Personality
Its mentioned in the various manuals and guide books of games that Lemmy, despite being the second oldest of the Koopalings, is exceedingly immature, preferring to clown around instead of committing crimes and conquest; this is proven in Mario is Missing!, where he simply plays in the cold and snow instead of helping Bowser in his plan to flood the Earth.

In The Adventures of Super Mario Bros. 3 and Super Mario World, Hip is more mischievous than truly evil on most occasions, and preferred to simply play pranks instead of cause havoc; though several episodes, such as "Life's Ruff", showed him capable of causing real chaos.

In Nintendo Comics System, Lemmy was somewhat childish and unintelligent, and seemed more keen on simply helping his father and trying to gain his appreciation then actually causing evil. Like Mario and several of Bowser's minions, Lemmy also had an obsession with the plumbing based hero Dirk Drain-Head and could somehow understand Larry's picture-only dialogue, while no one else could at all. In Nintendo Adventure Books, a continuation of Nintendo Comics System, Lemmy was portrayed as somewhat crazed in demeanor and much more menacing on some occasions.

In the Super Mario Amada Series and Super Mario Adventures, Lemmy's personality was, more or less, identical to his brothers own, with no real differentiating quirks or attributes.

Trivia

 * Lemmy was supposedly named after Lemmy Kilmister, the lead singer and bass guitarist of English heavy metal band Motörhead.