From the Super Mario Wiki
“Oh, it's Mario!! See this fine club I have? I'm gonna introduce you to it. Club...meet Mario!!!”
Clubbas are large, burly but lazy creatures who are often shown to work for Bowser as soldiers; though some Clubbas have shown to be neutral characters. A Clubba's trademarks is its spiked mace and tendency to sleep a lot. They closely resemble the smaller Spikes, and their Japanese name Gabon Hei (lit. "Gabon Soldier") implies that they are directly related to them, as Spikes are known as Gabon in Japanese. Clubbas only appear in the Paper Mario series.
The first Clubbas appeared in Paper Mario, where they were commonly seen guards in the castle of Tubba Blubba, himself a monstrous Clubba. Only a few of Tubba Blubba's Clubba henchmen actively guarded the castle, and if Mario so wished, he could simply sneak by sleeping Clubbas, which would only wake if they sensed a quick movement. If the player chooses a Clubba as one of the things Mario fears in a Princess Peach intermission, Kammy Koopa will summon one to guard a Treasure Chest in the Shy Guy's Toy Box. Later in Paper Mario, a single Clubba appears as a sleeping guard in Princess Peach's Castle; sleeping while it was supposed to be guarding a door in the castle. This Clubba could have its appearance copied by Princess Peach and her Sneaky Parasol, making a Clubba, complete with its mace, playable in a sense. Clubbas attack by whacking Mario with their club. If the Clubba misses outside battle it will try again but if Mario is caught in this attack outside battle, that Clubba will damage Mario when the battle starts.
Paper Mario: The Thousand-Year Door
In Paper Mario: The Thousand-Year Door, only one Clubba, named Grubba makes an appearance as the manager of the Glitz Pit and as a boss. This Clubba, however, appears to be quite different appearance-wise than other Clubbas. Most noticeably, he is dressed in a business suit, is blue instead of the usual green, has big orange lips, and has orange hair instead of the usual white Clubba hair.
Super Paper Mario
The most recent appearance of Clubbas has been Super Paper Mario, where they appear in all the surface areas of the Gap of Crag. They have very high HP in this game. Once more, they were often found napping and could be avoided by the player's character. A Clubba can also be fought against in Castle Bleck as an optional enemy, like in Paper Mario. There was also a very brief mentioning of Tubba Blubba, by Francis. According to him, Tubba Blubba stars in his own TV series called The Blubbening.
After completing Chapter 3, all enemies, including Clubbas, abandon Tubba Blubba's Castle except for one in the first floor east wing. He apparently fell asleep and got left behind and when talked to, he will wake up and realize this before falling asleep again. Being a regular NPC at this point, he can be Tattled on in the field.
Paper Mario series stats and Tattle information
Names in other languages