Enter IMMORTAL as a name at the high score screen.
Free movement mode:
Enter FLOATING as a name at the high score screen.
Hold [Return] and move the Joystick during game
play to move Dizzy around the screen.
Hold [Left Shift] + S + U + B
at the title screen. Exit the sub-game menu that appears to begin
game play. Press [F10] to obtain extra lives.