NCAA Football 10
48 Achievements
27-33h
4th Quarter Comeback
Win an Exhib. or Dynasty Mode game when down by 14 to start the 4th quarter (min difficulty: Varsity)
7.9%
How to unlock the 4th Quarter Comeback achievement in NCAA Football 10 - Definitive Guide
Make sure that you have the correct settings that are in the description before starting the game. You're going to have to lay down a bit and let the other team get up by 14 points. If it happens early enough in the game, just kneel down three times and punt for your possession and stop them on defense. Playing in a mismatch is helpful too (USC vs. San Jose St.). If the other team scores before the 4th quarter, then match them point for point. Try to arrange it so that you have to ball as the 4th quarter starts. Score quickly and then get a defensive stop. Repeat that one more time and you'll have the chance to take the lead. You may want to set quarters to 6 or 7 minutes just to give yourself some extra time.
Note: You can do this with two controllers if you're really struggling.