- "...Chunky can collect green bananas. Me wait in tag barrel until you need help."
- ― Chunky Kong, Donkey Kong 64
Chunky was freed by Lanky Kong in the level Frantic Factory. Before he was freed, he indicates that he doesn't like heights. Despite his brawny build, he acts somewhat cowardly and childish. One example of this is when the player selects him in the barrel, he gets scared, shakes his head 'no' and tries to convince the player to choose Tiny Kong instead (although, when not highlighted in the 'select spotlight,' strangely he is shown to be more enthusiastic about being selected). His weapon is the Pineapple Launcher, his instrument is the Triangle Trample, and the potion enables him to do Hunky Chunky, turning gigantic, Primate Punch, unleashing a very powerful punch which can smash down some doors and walls, Burp Skill, in which he releases a giant belch and pats his stomach, and Gorilla-Gone, turning temporarily invisible. He can carry boulders and other heavy items that the other Kongs cannot carry. It should be noted that it was Chunky, with a combination of the "Hunky Chunky" and "Primate Punch" abilities, who defeated K.Rool in the last boxing match in Donkey Kong 64. He appears as a sticker in Super Smash Bros. Brawl. He also made a brief cameo appearance in the GBA remake of Donkey Kong Country 3, in the third challenge of Funky's Rentals, where he was one of the Kongs that he had to be rescued from the Kremlings' kidnapping threat, along with other characters such as Candy, Tiny and Cranky Kong.