It just depends on where you place your pre-order. To make it easy, here are all the details straight from THQ:
CONTENDERS FIGHTER PACK: Consumers who pre-order UFC Undisputed 3 at GameStop in the United States or EB Games in Canada will have access to the Contenders Fighter Pack featuring prominent UFC newcomers Jason "Mayhem" Miller, Brian Stann, Phil Davis and Nick Diaz. Miller is currently scheduled to coach opposite fellow middleweight Michael Bisping in The Ultimate Fighter Season 14, premiering Wednesday, September 21 on SPIKE TV, while Stann, a former WEC light heavyweight champion and decorated captain in the U.S. Marine Corps, will face Chael Sonnen in a middleweight division matchup at UFC 136 on October 8 in Houston, Texas. Davis is a former NCAA Division I All-American wrestling champion at Penn State University who boasts a promising 5-0 record in his young UFC light heavyweight career, while Diaz, a former Strikeforce, WEC and IFC Welterweight Champion, will take on BJ Penn in his UFC debut at UFC 137 on October 29 in Las Vegas, Nev.
EARLY ACCESS PASS: Consumers who pre-order UFC Undisputed 3 at Best Buy in the United States or Canada will have early access to a variety of content without spending hours to complete multiple game modes. Players will automatically unlock 150 in-game items for created fighters, including t-shirts, hoodies and caps, as well as a variety of unique nicknames like "The Prince of Pain," "Wild Thing" and "The Bone Collector." In addition, they will have access to new bouts in Ultimate Fights Mode, including Brock Lesnar vs. Cain Velasquez (UFC 121), Chuck Liddell vs. Rich Franklin (UFC 115) and Anderson Silva vs. Forrest Griffin (UFC 101), as well as a "Legendary Chuck Liddell" playable fighter.
ULTIMATE FIGHTS: KNOCKOUT PACK: Consumers who pre-order UFC Undisputed 3on Walmart.com in the United States or Canada will have access to the Ultimate Fights: Knockout Pack featuring five of the most memorable knockouts in UFC history. The Ultimate Fights Knockouts Pack will serve as a complement to the game's Ultimate Fights Mode, a challenge-based system that encourages players to recreate famous UFC fights in order to unlock authentic fight montages, behind the scenes footage and fighter interviews.
ULTIMATE KNOCKOUT ARTIST BOOST PACK: Consumers who pre-order UFC Undisputed 3 at Amazon in the United States or FutureShop in Canada will have access to the Ultimate Knockout Artist Boost Pack, enabling the player to build his or her own specially created knockout artist using instant upgrade tips from UFC Undisputed 3game designers. This boost to a player's Create-a-Fighter will save an estimated 8-10 hours of gameplay time that would traditionally be spent training the ideal knockout artist.
The game's out in January.