An easy way to unlock this achievement is by using a second controller. Start up an Exhibition match with your second controller and choose the teams that you would like to play with. On the Settings Screen, make sure you have the your skill set to 'Heisman'. You can change the Quarter Length to whatever you would like, but I recommend making it only a couple of minutes so you don't have to wait long until the game is finished.
While in the game, you can play normally or you can use this quick method to score really fast. If you want to get some quick scores, have your second controller's team select a Field Goal Block, while your team selects a long pass play. Pass the ball immediately after hiking the ball to ensure a completion. Keep doing this until you reach 35+ points.
An alternate way to unlock this and Keep 'em Honest is by simulating. Start up an exhibition game with a high-ranked team against a bad team. (I used Alabama vs. Texas State) Make sure the difficulty is set to 'Heisman', and the Quarter Length to 15 minutes. After the coin toss, do a full simulation until the end of the game. After the game is complete, you should have 35+ points and have unlocked both achievements.
Achievement will unlock after completion of the game.