An early submarine simulation game with a simple goal: destroy all hostile subs.
Hidden Developer Credits#
Start a game on any difficulty. Afterwards, select sonar mode (S key), and, while holding Fire on Joystick 3, press the Inverse key to end the game. "GAME OVER" will be replaced with BY D M LOCK.
This will only work on the Atari 400 and 800.
(Source: Digital Press)