|This object exists primarily or exclusively within the Pre-Super Genesis Wave continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
Due to being created mainly as a research vehicle, the Bathysphere was never equipped with weapons, which has contributed to its various sinkings.
Rotor sets out in his submarine to the Frozen North Sea, upon hearing his mother's voice on his radio in Knothole. Rotor also piloted it to Flicky Island, along with Sonic and Tails in the Sea Fox in order to find out what Dr. Robotnik was up to.