Ibo is the main antagonist of episode 26 of the Rockman.EXE anime series. He is a Null that is that physical manifestation of the AI of an old fishing boat that sank some time ago. Ibo, seeing a clear day and a calm sea, rose the ship from the water and started collecting fish, however because the ship was infected with viruses, it accidentally captured Tohru Hikawa and Masa. Netto Hikari and his friends board the boat to find them, but are captured as well. Netto manages to delete the viruses in the ship's AI and he and Tohru save their friends, only to find Masa with Ibo. Netto tells him to stay away, but Masa informs them that he is the ship's AI, and it was all an accident. Having formed a friendship with Masa, Ibo somehow materializes next to Masa at the end of the episode and goes to collect fish with him.
Ibo is able to understand human language, or at least Masa, as he is able to converse with him as a "fellow man of the sea". It is unknown if Ibo is a Null virus like his kind is in the video games.