I have a question!!!
 

I have TekenTagTournament but It is scratched badly!!
It stops if I pick some characters or if I pick some stage
It's very annoying and I don't want to pay another 63euros for it
Is there anyway that I could play it without buying a chip~
and would it work if I load with the original cd and switch with the backup CD
please tell me if u know anything~~

Nope - no way except if you stick a knife into the guts of the disk drive at the right moment, twist it to move a pin (or frag the insides), eject the tray swap the game for a backup and continue.

u can always try replacing it at the store
but that a long shot

yehr return it like subzero said....first buy it again from a shop where u can return games....replace the damaged cd with the working cd....then take it back to the shop say it isnt working and get ur money back