12. Sneak Attack

What: NFL Championship vs. Chicago Bears
Date: 12/9/1934

The '34 Giants won the NFL championship over the Chicago Bears by a score of 30-13 after putting up 27 unanswered points in the second half. And if it seems like they made some adjustments at halftime, it's because they did. The biggest one: The entire team took off their cleats and put on a pair of sneakers. That gave them a distinct advantage on the frozen field at the Polo Grounds and propelled them to an easy victory.