i do not know

are there any codes for the thing?

there are action replay codes for the thing
#max ammo
#never get cold
#level select
#infinate health
#ammo increase when used
#select up for infinate health select down to stop.
#maniac runner.
##theres also an official game save##

i whant cheats for ammo and life can any one tell me

there are no button press cheats for the game!
there are action replay codes.
if your stuck then you need a walkthrough!theres plenty of ammo about,and medpacks.you
must use your medic if you have one to save on medpacks.
if you give anyone a weapon you can take it back and exchange it for a pistol just give
enough ammo for trust.once there dead you can walk over them and collect it back and if
any magazines also this will automatically be saved.if your stuck message me and ill help
you!