UFC 2009 Undisputed

Mask

Have three consecutive tapout or submission wins in Career mode to unlock Mask as a playable character in Exhibition mode in the light heavyweight weight class.
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Punk Ass

Get the "Tap Out" sponsorship in Career mode to unlock Punk Ass as a playable character in Exhibition mode in the lightweight weight class.
Credibility bonuses

Sponsors

Level 1 Sponsors: 1,500 to 15,000 Credibility.
Level 2 Sponsors: 17,000 to 35,000 Credibility.
Level 3 Sponsors: 37,500 to 60,000 Credibility.
Level 4 Sponsors: 63,000 to 75,000 Credibility.
Level 5 Sponsors: 78,500 to 92,500 Credibility.

Gym equipment

Boxing Ring: Already available
All Level 1 Training Equipment: Already available
Level 2 Training Equipment of your choice: 2,400 Credibility.
Level 2 Training Equipment of your choice: 9,150 Credibility.
Level 2 Training Equipment of your choice: 12,900 Credibility.
Level 3 Training Equipment of your choice: 20,400 Credibility.
Level 3 Training Equipment of your choice: 27,900 Credibility.
Level 3 Training Equipment of your choice: 35,400 Credibility.
Octagon Cage: 25,000 Credibility.
Full-Size Octagon Cage: 50,000 Credibility.

Sparring partners

Level 1 Sparring Partner: Already available; 50% Skill Bonus/Penalty.
Level 2 Sparring Partner: 6,210 Credibility; 75% Skill Bonus/Penalty.
Level 3 Sparring Partner: 19,150 Credibility; 100% Skill Bonus/Penalty.
Level 4 Sparring Partner: 27,780 Credibility; 125% Skill Bonus/Penalty.
Level 5 Sparring Partner: 45,030 Credibility; 150% Skill Bonus/Penalty.