The PS3 can only get downloads for games from thePlayStationStore. There is no custom maps available at the store so no there is no custom Zombie Maps. It's a PC thing to mod games with unauthorized software not approved by the copyrighted game developer
Zombie mode is after the PC PS3 and Xbox 360 games have completed and is not available for the PS2 or Nintendo Games. There are also 3 DLC for the PS3 or Xbox 360 that each include a new zombie map
zombie mode is on ps3 you dummy
There are a number of games for the PS2 and PSP, but could not identify any PS3 games
You can't get it for the Call of Duty series games with Nazi Zombies
Yes all PS3 can play any PS3 games if the have current updates which includes the latest 3D games
No, there are no halos for the ps3
yup
No, there are no Pokémon games on PS3 or any other non-Nintendo console.
No
Yes and No depending what ps3 model you have! If it has 2 usb ports it can only play ps1 games. If you have the ps3 slim it can't play any ps2 games no matter how many GB it has. Any ps3 can play ps1 games! ps1 and ps2 games can be saved on to the ps3 As long as you have the memory card adapter. You can only save ps2 games on the 20gb and 60gb and 80gb which have 4 usb ports! You can save ps1 games on any ps3 even on the slim.
There are three that i know of. Stubbs the Zombie, Zombie Panic, and to some extent, Left 4 Dead.