Double Dragon

Cheat mode:
Type r u calling me a pint a poff? at the title screen to enable cheat mode.
.
Enter one of the following codes at the title screen to activate the corresponding cheat function or press [Delete] during game play to kill any opponent.

Code                            Effect
----------------------------------------------------
level one please                Start at level 1
level two please                Start at level 2
level three please              Start at level 3
level four please               Start at level 4
last level please               Start at final level
give me more health please      Energy refill
give me loads of time please    Extra time
i do not want to die please     Invincibility
----------------------------------------------------

Humorous comments:
Enter NEIL HARDING at the high score screen for some humorous comments.

Unlimited lives:
Begin game play in two player mode, then wait until only a single credit remains and the continue message appears on both sides of the screen.
Then, press Fire on Joystick one and two simultaneously.