Lubba

"Hear me out now… Your special someone got kidnapped and now you gotta save her, am I right?"

- Lubba

Lubba is a particularly portly purple Luma who first appears in Super Mario Galaxy 2. He is the leader of the Lumas in the game, and similarly to them, Lubba can also be fed by shooting Star Bits at him. He tends towards wisecracks with guests on his ship; as an example, he claims to be allergic to Honeybees, has an aversion to Gearmos, and considers Whittles to be good friends.

Super Mario Galaxy 2
Lubba is first seen after Mario beats the Sky Station Galaxy's first level, Peewee Piranha's Temper Tantrum. Prior to the events of the game, Bowser destroyed Lubba's first spaceship by firing several meteors at it. This caused most of the Lumas on the ship to fall down to the Mushroom Kingdom. After Mario brings back the "young master Luma", Lubba thanks him and creates Starship Mario with his fellow Lumas and promptly appoints Mario the captain. Lubba aids and accompanies Mario in his quest to defeat Bowser, making a deal with him that, in return for Mario recovering the Power Stars, he helps Mario rescue Princess Peach. As the captain of the mobile hub of the game and the leader of the Lumas, he more or less replaces Rosalina and Polari of the previous Super Mario Galaxy in this respect.

Throughout the game, Lubba informs Mario of several different things, most of the time he stands by Starship Mario's wheel and tells Mario different things to help him out (he even tells the player when their batteries are running low, and that he should replace them, in case they die in a dangerous place). However, he can also be found in some other places on the ship. Whenever a new item or passenger comes aboard the ship, Lubba appears somewhere else on the ship and tells Mario something about the new object or creature and/or cracks a joke about them. Whenever Mario enters a new world, Lubba flies off of Starship Mario and say something about Mario's progress.

Lubba has various lines in Super Mario Galaxy 2 that can be seen during specific scenarios:
 * When playing early in the morning, Lubba's field speech bubble says "So...sleepy...". When spoken to, he says, "Geez. It's kinda early, isn't it? I feel so sleepy..."
 * When the Wii Remote's batteries are low, Lubba tells Mario to replace them and warns that it will be bad if the batteries die in a dangerous place.
 * When Mario has 77 Power Stars or 777 or 7,777 Star Bits, he says, "Hey, you have (number and object)! How lucky! ♪" Additionally, when Mario has 9,999 Star Bits, he says "What happens when you get 9,999 Star Bits? Something nice, I bet!"

After the player beats Bowser and after the final 242nd Power Star from the Grandmaster Galaxy is collected and Rosalina boards Starship Mario, it is revealed that Lubba has met her before. However, where he first met her is unknown. He thanks Mario for his hard work bringing who he calls "The Lady of the Shooting Stars" on board the ship.

Mario Golf: World Tour
Lubba makes a cameo appearance in Mario Golf: World Tour in Rosalina's Eagle, Albatross, and Hole-In-One animations.

Super Smash Bros. for Wii U
In Super Smash Bros. for Wii U, Lubba can be seen piloting the Starship Mario above Mario Galaxy, a stage based on the Super Mario Galaxy games. He also appears as a trophy.

Super Smash Bros. Ultimate
In Super Smash Bros. Ultimate, Lubba can be seen in the Mario Galaxy stage again, piloting Starship Mario like in Super Smash Bros. for Wii U. Lubba also appears as a support spirit, granting the fighter immunity from reversed left-and-right controls when equipped. The Lubba spirit battle pits the player(s) against a giant Kirby who starts the battle holding a Super Launch Star. There is decreased gravity for the duration of the battle (unless a spirit that counters this is equipped), and the battle takes place on the Mario Galaxy stage with the music "The Starship Sails" from Super Mario Galaxy 2 playing.

Mario Sports Superstars
Due to Mario Sports Superstars reusing Rosalina's golf animations from Mario Golf: World Tour, Lubba reappears in this game in the same capacity.

Super Mario Galaxy 2

 * North American website bio: "This spirited spaceship mechanic wants nothing more than to help Mario catch Bowser™. With his world class engineering skills he's built Starship Mario in our hero's image, for the sole purpose of chasing Bowser through the stars."

Trivia

 * Lubba is the only Luma thus far who is seen to actually wear clothes. In his case, he wears a blue plaid pair of pants.