WWE SmackDown! vs. RAW 2008 Cheats and Tips

You have to go in main event mode (any difficulty) and it's like an event if you get it you will recieve a challenge from the rock if you don't get it just do it again and again and if you beat him you will unlock him

Just keep stikeing until you have your specil then hit and pin

At the 'Main' menu go to 'Options' and select 'Cheat Codes' and enter the code without the quotes for the outfit you want to unlock.
Unlock Kelly Kelly's Alternate Outfit:
Enter the code 'KellyKG12R'
Unlock Triple H and Shawn Michaels DX Attire:
Enter the code 'DXCostume69K2'

How to unlock Shawn Michael's DX outufit:
Complete WWE Main Event Mode with Shawn Michaels.

Play through Main Event mode and compete in a PPV title shot in the indicated brand to the unlock the arena.
Unlock December to Dismember Arena:
As part of the ECW brand compete for a title in Main Event mode.
Unlock ECW One Night Stand Arena:
As part of the ECW brand compete for a title in Main Event mode.
Unlock New Years Revolution Arena:
As part of the Raw brand compete for a title in Main Event mode.
Unlock Survivor Series Arena:
As part of the Raw brand compete for a title in Main Event mode.
Unlock Backlash Arena:
As part of the Raw brand compete for a title in Main Event mode.
Unlock Unforgiven Arena:
As part of the Raw brand compete for a title in Main Event mode.
Unlock Vengence Arena:
As part of the Raw brand compete for a title in Main Event mode.
Unlock WrestleMania Arena:
As part of the Raw brand compete for a title in Main Event mode.
Unlock Armageddon Arena:
As part of the Smackdown! Brand compete for a title in Main Event mode.
Unlock Judgement Day Arena:
As part of the Smackdown! Brand compete for a title in Main Event mode.
Unlock No Mercy Arena:
As part of the Smackdown! Brand compete for a title in Main Event mode.
Unlock No Way Out Arena:
As part of the Smackdown! Brand compete for a title in Main Event mode.
Unlock Royal Rumble Arena:
As part of the Smackdown! Brand compete for a title in Main Event mode.
Unlock Summer Slam Arena:
As part of the Smackdown! Brand compete for a title in Main Event mode.

To unlock characters such as Terry Funk, Rick Rude, Sabu, Mick Foley, "Stone Cold" Steve Austin, and "The Rock" in the "Play Now" and "Tournament" modes, simply play "Main Event" mode until one of these legends become selectable for matches
As for John Bradshaw Layfield, Shane McMahon, and Vince McMahon, you must achieve "Main Eventer" status on a specific brand
-to unlock John Bradshaw Layfield, achieve Main Eventer status on the "Smackdown" brand
-to unlock Shane McMahon, achieve Main Eventer status on the "Raw" brand
-to unlock Vince McMahon, achieve Main Eventer status on the "ECW" brand

Complete these tasks in Main Event mode to unlock characters and outfits.
Unlock JBL:
Reach Main Eventer ranking in Main Event mode for the SmackDown brand.
Unlock Shane McMahon:
Reach Main Eventer ranking in Main Event mode for the Raw brand.
Unlock Vince McMahon:
Reach Main Eventer ranking in Main Event mode for the ECW brand
Unlock Vince McMahon Bald Head:
Win the ECW World Championship.
Unlock Triple H DX Outfit:
Reach Main Event status as Triple H.