Disney's Darkwing Duck
Books: GAME BOY Secret Codes - Secret Codes 2003 - Game Boy Games Secrets
01A-0BF-C4D Infinite lives
011-84F-F7A Start with 1 pt. of energy and 1 life--1st game
051-84F-F7A Start with 5 pts. of energy on 1st life and 5 lives--1st game
091-84F-F7A Start with 9 pts. of energy on 1st life and 9 lives--1st game
019-F0F-F7A Start with 1 pt. of energy after 1st life
059-F0F-F7A Start with 5 pts. of energy after 1st life
099-F0F-F7A Start with 9 pts. of energy after 1st life
FAD-398-4C1 Infinite ammo on pick-up
010-6FB-A2B 1 touch by an enemy kills you
AA0-64B-A2B Invincibility time lasts 4 sec.
FF0-64B-A2B Invincibility time lasts 6 sec.