Wrath Unleashed 
  
PS2
  

Double health/speed in Vs. Mode:


At the title screen, press Down, Down,  Up, Down,
Left,
Right, Down, Up, Up, Up, Up, Right, Left,
Square.

Extra Vs. Mode characters:


At the character select screen, press L1, L1, Down, Down, R2, Select,
R2, Select, R1, L1, R2, R1, R1, Select. 

Big  characters at world map:


 At the title screen, press Left, Square, Up, Circle,
Right, Triangle, Down, Triangle.
Vs. Mode Elephant Pool Arena:


  Win 20 team battles.
 Vs. Mode Metal Age Arena:


Win 100 arena battles.





 Thanks to Revolution readers chipperdan and eegloo!