Play as Mask 
Win all gold belts with all regular fighters except one in legend mode to unlock 
Mask.


Play as Skyscrape 
Win all gold belts with all regular fighters in legend mode to unlock Skyscrape.


Play as Larry Landless 
Win the silver belt with all characters except one in championship mode to unlock 
Larry Landless.


Play as Big John McCarthy 
Win the silver belt with all characters in championship mode to unlock Big John 
McCarthy.


Bruce Buffer:
Win 33 consecutive matches in arcade mode.


Frank Fertitta:
Lose 66 bouts in arcade mode.


Additional fighters:
Win five consecutive matches to unlock the following fighters, in order. 
The next fighter in line will be unlocked with your next streak of five wins.

1. Robbie Lawler
2. Tsuyoshi Kosaka
3. Vitor Belfort
4. Pat Miletich
5. John Lewis
6. Dan Severn
7. Jeremy Horn
8. Hayato Sakurai
9. Maurice Smith
10. Mark Coleman
11. Mikey Burnett
12. Bas Rutten
13. Gary Goodridge
14. Frank Shamrock
15. Marco Ruas