Nintendo has trademarked two bizarre game names which point to a revival of cult Dreamcast virtual pet title Seaman, which starred a fish with a man's face.
The Mario maker snapped up the rights to Mysterious Pet: Legend of the Fish With A Human Face and Mysterious Partner: Legend of the Fish With A Human Face earlier this month, Japanese blog Esuteru noted (thanks, Siliconera).
Seaman creator Yoot Saito later worked with Nintendo on bizarre microphone-controlled feudal Japanese-themed pinball title Odama which was released exclusively on GameCube.
He then worked on 3DS-exclusive Guild01 mini-game Aero Porter, a game about sorting people's airport luggage.
Saito teased a Seaman revival last summer by releasing a picture of his iconic man-faced fish creation wearing a Santa hat and beard.
Rumours of the game's revival began even earlier - a February 2012 report in Japanese newspaper Nikkei claimed that Nintendo was planning on reviving Seaman for 3DS.