No theres not
press start and enter the code but each code hast to be done in 3sec.
There are no cheat codes as far as simply pressing buttons in a certain order to unlock things like invincibility. However, if you have a cheat device there are codes you can enter using that. Codebreaker Codes: http://www.gamefaqs.com/console/ps2/file/915410/42713 Pro Action Replay Codes: http://www.gamefaqs.com/console/ps2/file/915410/45429
They are all not available for the PS2
If you are talking about the Japanese version, it's compatible with a Japanese PS2. You can also get SwapMagic so that you can play it on an American PS2.
You can download the Ps2 Emulating software and BIOS from http://pchelpsite.co.nr Click on the EMU link at the top of page. It works trust me. ++plus you can try to copy these file into bios folder at emulators
No there are no cheats for Shadow the Hedgehog.
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For what game
yes there are cheats for this game,sorry i only know the cheats to it for ps2
NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
NO
No, but you dont need any.
You can go to cheatfreak.com and search any game for any system and you will get your cheats.
No!
YA MOM
No there are not
the game for the ps2 that has the most cheats is Grand Teft Auto San Andraes