Release year : 1984
Titans have imprisoned Neptina, the daughter of Neptune! They have shattered his magical trident, scattered its pieces in the air and under the sea. Without his trident, Neptune is powerless.
Proteus, faithful member of Neptune's court, longs to free the lovely mermaid. He journeys to find the missing pieces of the trident, roaming land and sea, changing from a dolphin to a seagull and back again in order to deceive Neptina's captors.
But deadly trials await Proteus. Octopuses! Tangled beds of kelp! Screaming flocks of black birds! Erupting volcanoes! Valiantly, Proteus fights on ...