Mantra, the Evil Manta-ray, is the main antagonist throughout the second and third season of Squiddles during it's original 2000 - 2004 run. Mantra makes his first appearance in the second season two episode "All Rise and Start a Mantra!"; he swam from Ray Garden Kingdom in order to bring disorder to the Squiddles and their way of living. His last appearance came about in the season three finale "You Must Swim To The Bottom", when the Squiddles formed a pact with the Orca whales to scam him out of their territory.