Adventures of Sonic the Hedgehog (1993)

S1E4 Submerged Sonic

In a race against time, Robotnik sets his sights on the Power Gems located in the underwater city of Submerbia. To thwart his nefarious plans, Sonic and Tails are enlisted to protect these precious gems. With their quick thinking and teamwork, the duo must navigate the challenges of the submerged city to prevent Robotnik from harnessing the gems' power for his evil schemes.