http://www.kongregate.com/games/Torrunt/firefight

(boring game for me, killed 5 minutes with it though)

Invincible player.
d0 d1 d2 d3 62 04 4e 9d 0a 04 60 8a 0a
02 02 02 02 02 02 02 02 02 02 60 8a 0a

Ammo doesn't decrease.
d0 66 8b 02 11 15 00 00
02 02 02 02 02 02 02 02