Ecco The Dolphin Cheat mode: Press Start during game play to view the sonar screen. Press Right, 1, 2, 1, 2, Down, 2, Up to display a new menu with invincibility, unlimited continues and other options. Level Password Medusa Bay QMBRB Undercaves AGCFU Ridgewater VADJR Open Ocean QYEKR Cold Water IAFWN Deep Water YAHWV The City of Forever, part 1 OKBKI Origin Beach CCRIJ Dark Water WGUKK The City of Forever, part 2 MEMSK The Tube GGWAO The Machine KOWMP The Vortex WCSKQ