Ruub

Ruub is a fictional character who first appeared in the animated television series "The Adventures of Finn and Jake," created by Pendleton Ward. Ruub is a small, yellow, sentient cloud with a circular mouth and two simple, dot-like eyes. Despite its unassuming appearance, Ruub is often portrayed as possessing a unique and sometimes unpredictable personality.

The character's role in the series varies, but Ruub is generally depicted as a friendly, albeit somewhat naive, being. Ruub's dialogue is often simple and to the point, contributing to its childlike demeanor. Its interactions with the main characters, Finn the Human and Jake the Dog, are typically lighthearted, sometimes providing comic relief or offering minor assistance in their adventures.

Ruub's design is minimalist, emphasizing its cloud-like nature. Its ability to float and drift through the air is a consistent characteristic. While not a central figure, Ruub serves as a recurring element within the fantastical world of Ooo, adding to the show's quirky and imaginative landscape. The character's limited screen time and straightforward personality have made it a memorable, if minor, part of the "The Adventures of Finn and Jake" universe.