The Perfect Game Challenge is a competition where players will compete to pitch a perfect game in MLB 2K12.
MLB Today Season Mode
Franchise Mode is a mode where a player can play through multiple MLB seasons with one team, all while signing free agents, making trades, drafting players and setting rosters for that team and its minor league affiliate teams. However, it is not as in depth as MLB Today Season Mode, and more than one game may be played in a day in Franchise Mode. You can edit your players abilities in all areas unlimited times, making it possible to make your entire team perfect.
You can also edit their contract values and adjust the sliders or difficulty level during a franchise.