D16C-0D0D Start with half energy--1st life
D161-AF0D Start with half energy--after 1st life
C22C-AF08 Almost infinite energy
7DA8-C7DC Gun power-ups worth 30
D9A8-C7DC Gun power-ups worth 5
C267-A70D Infinite lives
DF6C-040D Start with 2 life
D76C-040D Start with 4 lives
DB6C-040D Start with 10 lives
82EA-A4D1 1 hit and you're invincible
DDEA-AFA1 + DDA0-04A8 Everyone is invincible--including enemies