"Dinner time~!" *Bunzo acts as the main mascot and antagonist for Musical Memory, in which he lowers himself towards The Player as they play the game. If The Player gets continuous errors in the game's pattern sequence or fails to play the game quickly within the timing of Bunzo's descent, he will reach The Player, jumpscaring and killing them, resetting the game.

Once The Player succeeds in the game, Bunzo will stop descending and crashing his cymbals and stay in his current position. Bunzo Bunny is often seen as being very cheerful and playful, always wishing people happy birthdays. His murals and cut-outs show that Bunzo also likes to joke around, making wacky poses with his facial expressions. He seems to enjoy celebrating others' birthdays when he gets the chance, as evidenced by the audio clips shown alongside his cardboard cut-outs. He sometimes carried a bucket-like character called Bucky.

The Bigger Bodies version of Bunzo, however, takes on a darker and more twisted personality, showing his excitement and ravenous behavior through his cymbals, crashing them faster and louder the closer he gets to The Player. He seemingly delights in eating The Player if they fail the game, screaming and crashing his cymbals with a deafening din before doing so. Bunzo Bunny is an anthropomorphic yellow rabbit with black eyes, two large buck teeth, and long ears. He frequently appears with a wide grin. He also wears a green party hat similar to those seen on clowns and matching overalls with suspenders and buttons of the same color. Bunzo typically holds two golden cymbals. His cheeks are orange, similar to the inside of his ears; he has small tufts of fur around his chest and on top of his head.

In his hostile form, he retains largely the same appearance. However, one notable difference is that he now has a row of jagged fangs lining his mouth, which is also split further and widely open.*