All Wrestlers:
Enter the following as a PPV password:
PLYHDNGYS

Get Full Attributes for Created Wrestlers:
Enter the following as a PPV password:
MKSPRCWS
You may now put a Wrestler's Attributes at full.

Identical Wrestlers(versus mode only):
Enter the following as a PPV password:
DPLGNGRS
You can now control identical wrestlers.

Unlock the "Quest For The Best" Mode:
Enter the following as a PPV password:
CHT4DBST
You now have access to the "Quest for the Best" Mode.

Unlock Nitro:
Enter the following as a password:
PLYNTRCLSC
Now go to the "Ring Selection Screen" and Nitro will be available.

View Stamina:
Enter the following as a PPV password:
PRNTSTMN

View Momentum:
Enter the following as a PPV password:
PRNTMMNTM

Masked Rey Mysterio Jr.:
Enter the following as a PPV password:
MSKDLTLRY

Billy Kidman as a Fat Wrestler:
Enter the following as a PPV password:
NGGDYNLN

Unlock Back Stage Rooms:
Enter the following as a PPV password:
CBCKRMS
Thanks to the codemeister

Play as Sonny Onoo:
You must first win the TV TITLE as Ernest Miller in the "Quest for The Best Mode".