Here are the four secret achievements you can unlock in UFC Undisputed 3 for the Xbox 360.
Artiste (5) – Create a Logo and apply it to a CAF as a Tattoo
Dedication (15) – Accumulate 15 hours of fight time
Face, Meet Foot (35) – Rock an opponent with a Foot Stomp to the head in a PRIDE fight
Running a Clinic (35) – Transition to all of the ground positions
Check out my other article for the complete list of unlockable achievements in UFC Undisputed 3 for the Xbox 360.