Duke Nukem - Platform: Gameboy Color

Invincibility
-------------
Press Up, Down(2), Left, Right, Left, Up(2) 
at the title screen. 

Level select
------------
Press Left, Right, Up(2), Down, Up, Right, 
Left at the title screen. 

Rapid-fire gun
--------------
Begin game play on level 4 to get to the diagonal 
platform. Repeatedly press A to keep going on the 
platform and find a rapid-fire gun.

Avoid damage from falls
-----------------------
Pause game play just before hitting the ground. 
When game play is resumed, you will land without 
damage.