Unlock Fred Durst
Beat over 15 opponents in one game in the Slobberknocker mode with the Undertaker.
Alternate strategy on how to unlock Fred Durst
With the undertaker in slobber knocker when an opponent enters the ring run and clothesline the guy then pick him up and press down and circle then you will do the tombstone. This will either knock the guy out to pin him or he will be weak enough to pin and make him elimanated.
Undertaker to come out on a bike with Fred Durst
Go to slobber knocker with the undertaker and defeat 15 people then exit. After that go to tag match and chose undertaker and Fred Durst and they will be on a bike
Unlock Stephanie McMahon
To unlock the Billion Dollar Princess, open all the secret cards and win the title match.
Unlock Spike Dudley
You will unlock Spike Dudley when you meet him in the story mode, when searching for a partner in your six-man tag match. He will be in one of the changing rooms, and will be unlocked if you help him out against the Dudley Boys.
Unlock Jerry Lynn
You will unlock Jerry Lynn when you meet him in the story mode.
You will unlock Tajiri when you meet him in the story mode, and defeat him.
You will unlock Rhyno when you meet him in the story mode. To do this, on Smackdown stay backstage when a wrestler calls you out, and after speaking to Michael Cole, talk to Earl Hebner in the lobby. Say you are going after the Hardcore title, and when beat Rhyno.
Unlock Mick Foley and Shane
With Stone Cold Steve Austin as the champion, in story mode play as the Rock and win both the single matches until Wrestlemania, and then lose to Austin in the Last Man Standing match. Foley will then come out and book a Hell in a Cell rematch, which you must then win.
New SmackDown ! arena
Eliminate 17 Superstars in the Slobber Knocker mode with The Rock.
Unlock Special Matches
To unlock the Special Matches marked as ?????, in story mode on Smackdown accept the challenge of whoever propositions you, and chose whichever match it is you want to unlock, out of Last Man Standing, Street Fight and Ultimate Submission.
How to Challenge for Belts:
Follow these events in order:
Choose a male wrestler, turn down Tag title offer, Talk trash, Say you want to kick his ass to Michael Cole, Ask Vince for match, Win, Appear on Stage, any match, win.
Choose a man, Do anything on Raw is War as long as you win, Stay Backstage, Talk to Earl Hebner, Ask Earl how he is, accept offer from Regal.
Choose a male wrestler, turn down Tag title offer, Talk trash, Say you were just messing with him, go to Regal's office, Accept offer.
Choose a light-heavyweight male, Choose a male wrestler, turn down Tag title offer, Talk trash, Say you were just messing with him, go to Regal's office, Turn down offer for European, Win, Stay Backstage, Talk to Earl Hebner, Ask Earl how he is, Request Light-Heavyweight title match.
Accept Vince's Tag Team offer, Find partner, Win, Find six-man tag partner after saying you trust your partner, win.
Women's: Choose a woman and follow Heavyweight title route.
[- Submitted by CYBrFREAk]