Graipuss Medussi refers most clearly to the Roblox Steal a Brainrot adaptation of a pre-existing Italian Brainrot meme character usually spelled Graipussi Medussi. Across fan reference sites, the underlying concept is consistent: a jellyfish-grape hybrid, aquatic-themed, purple-toned, and associated with creator @alexey_pigeon.
The most stable facts online are the in-game ones. Steal a Brainrot Wiki records Graipuss Medussi as a Secret brainrot released with Update 3 on June 14, 2025.
The same wiki gives it a cost of $250M and an income rate of $1M per second, and the Update 3 log separately confirms that Graipuss Medussi was one of the four brainrots added in that patch. Visually, the original meme and the game version are related but not identical.
Italian Brainrot reference pages describe the original Graipussi Medussi as a Jellyfish Grape said to have been found in the Pacific Ocean, with a body that looks like grape clusters and long jellyfish tentacles in purple and pink tones. The Steal a Brainrot page narrows that down further and says the Roblox model appears as a purple jellyfish with a grape as its body, plus a face, eyes, and a slight smile.
That difference matters because the same source explicitly says the in-game version differs from the original meme by having a face. In other words, Graipuss Medussi is not just a spelling variant; it is also a slightly adapted visual version made for Roblox.
Dating the character's true origin is messy. ItalianBrainrot.wiki lists January 1, 2025 as the debut date for Graipussi Medussi, while PlayBrainrot lists March 12, 2025 and says it was created by @alexey_pigeon in March 2025.
I could not independently verify the original TikTok upload directly from TikTok in this session, so those dates should be treated cautiously. January 1, 2025 may be a catalog placeholder used by fan databases, and March 12, 2025 may reflect either the actual post date or a later indexing choice.
What is better supported is the sequence: the meme character Graipussi Medussi appears to have existed first, and the Roblox character Graipuss Medussi was added later on June 14, 2025. The name change is one of the better documented parts of the character's history.
The Steal a Brainrot fandom page notes that the original meme name was Graipussi Medussi, and that the Roblox-facing form became Graipuss Medussi because the earlier spelling sounded like sexual slang in English. That explains why search results split between the two spellings even when they are clearly describing the same jellyfish-grape design.
For clean metadata, Graipuss Medussi is the correct title for the game character, while Graipussi Medussi is the key alternate and origin spelling that links it back to the wider Italian Brainrot meme ecosystem. The sound side of the character is only partly documented.
Italian Brainrot pages preserve a short chant-like lyric: Graipussi Medussi! Graipussini Medussini!
Medu! Medu!
They also list The sound of your fear as the associated audio or music label. The Steal a Brainrot fandom page separately links to a dedicated sound file for the character.
What remains uncertain is whether The sound of your fear is the official title of the original upload audio, a fan-assigned label, or simply the catalog name used by reference sites. I would not state that more strongly than the sources support.
As a game entity, Graipuss Medussi is consistently presented as high value. Multiple Steal a Brainrot references agree on Secret rarity, $250M cost, and $1M/s income.
Availability is slightly less tidy: the fandom page says it was released with Update 3 and can be obtained by Fishing or by waiting for a low-chance Red Carpet spawn, while the same page's status box mentions Red Carpet and Escape Tsunami LTM. Because fan wikis can lag behind game patches, the safest wording is that Graipuss Medussi has been obtainable through special event or spawn systems rather than ordinary early-game progression, and that stealing it from other players is also part of the game loop.
Some deeper lore claims exist, but they are not equally reliable. PlayBrainrot presents colorful backstory details such as a champagne explosion during a solar eclipse, a Pacific Ocean habitat, and even a memory-altering touch.
Those details read like fan-written flavor text rather than firmly corroborated canon, especially because stronger game-focused sources do not repeat them. If strict factuality matters, those ideas should be treated as unverified lore attached to the meme character, not as hard facts about the Roblox unit.
Taken together, the clearest factual summary is this: Graipuss Medussi is the Steal a Brainrot name for a Secret, aquatic-themed brainrot added on June 14, 2025 in Update 3, priced at $250M and producing $1M each second. It is based on the earlier Italian Brainrot meme character Graipussi Medussi, a jellyfish-grape hybrid commonly attributed to @alexey_pigeon.
