Blitz: The League Codes -

Gameplay Options
Codes to toggle different gameplay options for Quick Play (enter them under Extras -> Codes):

ONFIRE - Ball Trail Always ON
BOUNCY - Beach Ball
PIPPED - Double Unleash Icons
NOTTIRED - Stamina OFF
CHUWAY - Two Player Co-op
CLASHY - Unlimited Clash Icons
BIGDOGS - Unlimited Unleash

Achievements
Complete each achievement to get the allotted gamerscore:

Air Supremacy (20) - Gain 400 passing yards in any Campaign Mode game.
Arsenal (9) - Score 19 points in a quarter in Campaign Mode.
Bling Bling (15) - Buy every piece of bonus equipment that's unlocked after you beat Campaign Mode.
Bombs Away (13) - Win a game by only passing the ball.
Buffet Victory (30) - Win a Quick Play game with every team.
Burning Sensation (69) - You feel itchy down below. Did you pick something up from your last opponent?
Butterfingaz (10) - Beat the computer in a bonus Quick play game of Butterfingaz.
Custom Pain (14) - Beat 10 online opponents with your Campaign Mode custom team.
Deep Pockets (10) - Earn $500,000 dollars online.
Division 2 Champ (70) - Beat Division 2 in Campaign Mode.
Domination (10) - Beat the computer in a bonus Quick Play game of Domination.
Fast Learner (10) - Complete every Training Camp task.
Greatest Show (15) - Score 24 points in a quarter in Campaign Mode.
Ground Attack (17) - Win a game by only running the ball.
Groundhog (35) - Gain 200 rushing yards in any Campaign Mode game.
Gunslinger (6) - Throw at least 6 TD passes in a single game in Campaign mode.
Headhunter (10) - Knock Julius Williams out of the game (Quickplay or Campaign).
High Roller (15) - Earn $150,000 in one Campaign Mode game.
Juiced (15) - Train both Rookie and Veteran up to an A+ rating during Campaign Mode.
L33T (50) - Win every game in Campaign Mode.
LT's Pride (25) - Completed 20 sacks with a veteran in one Division Season.
Mad Bank (20) - Earn $1,000,000 dollars online.
Manvalanche (15) - Get 12 sacks in one Campaign Mode game.
Mexico'd (11) - Knock Mexico out of the game with a game-ending injury (Quickplay or Campaign Mode).
O RLY? (0) - Lost by more than 24 pts in Campaign Mode.
Ownage (20) - Win 10 games online.
Passing Champ (15) - Win the passing title with your rookie (any division in Campaign Mode).
Playmaker (5) - Score a 90+ yard touchdown in Campaign mode.
Pwnage (50) - Win 25 games online.
Receiving Champ (15) - Win the receiving title with your rookie (any division in Campaign Mode).
ROFL Waffle (0) - Lost 5 games in a row online.
Romo (25) - Cause 3 or more injuries to your opponent in a single Campaign Mode game.
Rushing Champ (15) - Win the rushing title with your rookie (any division in Campaign Mode).
Scrubs Champ (25) - Beat Division 3 in Campaign Mode.
Shutdown (10) - Hold an opposing team to under 100 combined (pass/rush) yards in a Campaign Mode game.
Shutout (10) - Complete one shut out game in Campaign Mode.
Special Teamer (25) - Return a punt or a kickoff for a touchdown in a Campaign Mode game.
Sticky Fingers (20) - Gain 200 receiving yards in any Campaign Mode game.
The Blind (0) - Threw 5+ interceptions in one game.
The End (150) - Beat Campaign Mode.
Thief (15) - Force 7 turnovers with your veteran in a Division Season in Campaign Mode.
Top Dog (6) - Beat an online opponent with your Campaign Mode custom team.
Underdog (15) - Beat the Nightmare in Hard Difficulty in Quickplay when using the Grizzlies or Hammerheads.
Weak Sauce (0) - Lost to Arizona in game 1 of Campaign Mode.
Whale (25) - Earn $250,000 in one Campaign Mode game.

Unlock Playmodes
All or Nothing - Score a 90+ yard touchdown in a single Quick Play game.
Buttafingaz - Complete rushing portion of Training Mode.
Bonecrushers - Gain 30 victories in Quick Play mode.
David vs. Goliath - Win a single Quick Play game without using any pass plays.
Domination - Complete Prime Time Portion of Training Mode.
Deuces Wild - Complete Receiving portion of Training Mode.
Lucky 7's - Win a single Quick Play game using only pass plays.
No Injuries - Complete Passing portion of Training Mode.
Big Head - Gain 40 victories in Quick Play mode.
Pain - Complete Defense portion of Training Mode.
Windbreakers - Kick 5 or more successful field goals in a single Quick Play game.