Ecco the Dolphin: Defender of the Future Game Cheats ( Dreamcast )
Active Map
Hold X (sonar) during gameplay for a long time. Press X again to return to normal.
Full Pause Screen
Press Start to pause gameplay, then press X + Y.
Swim Outside the Game World
Encounter the Boss in the "Blades..." level. It is a large room with a Boss that resembles a large dragonfly larvae. Go to the bottom of the room where you can refill your air supply with the bubbles coming out of the ground. Next to the bubbles on the floor near the wall is a small hole. Go through it and get outside the game world.
