WWF: Royal rumble

Wrestle as Vince McMahon
Win all ten matches in exhibition mode on any difficulty setting.
Wrestle as Shane McMahon
Win the Royal Rumble on any difficulty setting.
Alternate costumes
At the character selection screen, highlight a wrestler, then hold Start and press A.
Alternate backgrounds
Enter the ranking screen and choose any section. Then, return to the main menu to see a different background. Repeat this to see more backgrounds.
Infinite double team moves
Knock out the ref by hitting him with a weapon twice. If done correctly, a message stating "The Referee Is Knocked Out" will appear. "Double Team" will now light up in different colors. You can now perform double teams moves as many times as desired.
Avoid attacks
Hold Block and repeatedly press the D-pad in all directions. Your wrestler will dodge every time your opponent punches or grapples, and an opening will eventually appear.
Stay in Royal Rumble longer
Rotate the D-pad when your wrestler is holding on to the ropes to stay in Rumble longer.

Game Shark Codes

Unlock Vince McMahon 274778B4
00000001
Unlock Shane McMahon 7E15C8F3
00000001