1 D16C-0D0D Start with half energy--1st life2 D161-AF0D Start with half energy--after 1st life3 C22C-AF08 Almost infinite energy4 7DA8-C7DC Gun power-ups worth 305 D9A8-C7DC Gun power-ups worth 57 C267-A70D Infinite lives8 DF6C-040D Start with 2 life9 D76C-040D Start with 4 lives10 DB6C-040D Start with 10 lives11 82EA-A4D1 1 hit and you're invincible12 DDEA-AFA1 + DDA0-04A8 Everyone is invincible--including enemies