Max your reciever's speed and acceleration:
During the position change stage of the dynasty offseason, move your reciever to tightend. Temporarily leave the stage by pressing B and accept the changes you made. Reenter the stage and move him back to reciever. His speed and acceleration maybe over 100, but it will be trimmed to 99 in the training results stage. If you do more than one reciever, some may stay over 100 until the next offseason, but their game speed will not reflect the 100 stats.

Achievements:
Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Throw 4 TD Passes In A Game 15 points:
Self-explanatory.

350 Total Passing Yards 15 points:
Pass for 350 or more total yards in a game.

200 Total Rushing Yards 15 points:
Rush for 200 or more total yards in a game.

No Fumbles In A Game 15 points:
Do not fumble the ball in a game.

No Interceptions in a Game 15 points:
Do not throw an interception in a game.

Win by 21 10 points:
Win a game by 21 points or more.

Pass to 5 Different Receivers 10 points:
Complete a pass to 5 or more receivers in a game.

100 Yard Receiver 10 points:
Gain 100 or more receiving yards with a single player.

100 Yard Rusher 10 points:
Rush for 100 or more yards with a single player.

Complete a 30 Yard Pass 10 points:
Self-explanatory.

Complete a 60 Yard Pass 20 points:
Self-explanatory.

Break a 30 Yard Run 10 points:
Break a run for 30 or more yards.

Break a 60 Yard Run 20 points:
Break a run for 60 or more yards.

Allow No Sacks 15 points:
Do not give up any sacks in a game.

Intercept 2 Passes 15 points:
Intercept 2 passes in a game on defense.

Recover 2 Fumbles 15 points:
Recover 2 fumbles on defense in a game.

Return Interception for a TD 20 points:
Return an interception for a touchdown.

Return Fumble for TD 20 points:
Score a touchdown after recovering a fumble on defense.

Make 4 Sacks 20 points:
Sack the opposing quarterback four or more times in a game.

Held Under 200 Yards 10 points:
Hold the opposition to under 200 total yards.

Held Under 100 Yards 25 points:
Hold the opposition to under 100 total yards.

2 Sack Player 10 points:
Make 2 sacks in a game with the same player.

Score a Safety 30 points:
Score a safety on defense.

Shutout 30 points:
Prevent your opponent from scoring any points in a game.

Punt Return for TD 15 points:
Return a punt for a touchdown.

Kickoff Return for TD 20 points:
Return a kickoff for a touchdown.

50 Yard Field Goal 25 points:
Kick a 50 or more yard field goal.

50 Yard Punt 15 points:
Punt the ball 50 or more net yards.

Block a Punt 25 points:
Block a punt.

Block a Field Goal 25 points:
Block a field goal.

Score 35 Points 15 points:
Score 35 points or more in a game.

500 Total Yards 25 points:
Gain 500 total yards or more in a game.

1 Offense 25 points:
Have the 1 ranked offense in a Dynasty season.

1 Defense 25 points:
Have the 1 ranked defense in a Dynasty season.

Undefeated 10 points:
Go undefeated during a season in Dynasty mode.

Conference Champs 10 points:
Win a conference championship game.

Heisman Memorial Trophy 25 points:
Win the Heisman Memorial Trophy with a player on your Dynasty team.

5 Star Recruiting 25 points:
Sign 8 or more 5 star prospects in your recruit class.

Bowl Win 10 points:
Win a bowl game in Dynasty mode.

National Champions 25 points:
Lead your team to a BCS championship in Dynasty mode.

Dynasty Trifecta 50 points:
Win the National Championship in three back-to-back seasons in Dynasty mode.

Mr. February 25 points:
Have the 1 ranked recruiting class in a Dynasty season.

60 Year Dynasty 100 points:
Complete 60 years of Dynasty.

Perfect Game 40 points:
Bowl a 300 Game.

High Score 40 points: Option Dash:
Score 15,000 or more points in Option Dash.

Win Tug-of-War 40 points:
Win the Tug-of-War mini-game.