Ecco the Dolphin is a unique game that lets you control a dolphin through various aquatic levels. You'll explore nonlinear underwater environments with submerged caverns and tunnels, navigating around islands, volcanoes, powerful currents, spikes, and predators like octopi and giant eels.
The story follows Ecco, a dolphin who managed to escape from a giant whirlpool that destroyed his pod. With the help of an Atlantean time machine, he must travel through time and space to meet the mystical Asterite and defeat the Vortex Queen, saving his pod along the way.
The gameplay relies heavily on exploration and navigation, with Ecco using his sonar ability to communicate with animals, map out the area, activate glyphs, and defeat enemies. The sonar has multiple functions, including echolocation, which helps you navigate the underwater levels.
You'll need to keep an eye on Ecco's life and breath meters, as he can't stay underwater for long periods. You can replenish his health by eating fish or finding healing clams, but be careful not to get hit by spikes, lava, or enemies, which will drain his health.
Ecco can also defend himself using the death sonar or charging at enemies head-on. The goal is to reach the exit of each level and progress through the game, while avoiding obstacles and dangers along the way.