Bart's costumes and trophies - At the main menu, press Right, Left, X(2), Y, click Right Analog-stick to unlock all of Bart's costumes and trophies for the current game session. If you entered the code correctly, you will hear Bart laugh.

Homer's costumes and trophies - At the main menu, press Left, Right, Y(2), X, click Left Analog-stick to unlock all of Homer's costumes and trophies for the current game session. If you entered the code correctly, you will hear Bart laugh.

Lisa's costumes and trophies - At the main menu, press X, Y, X(2), Y, click Left Analog-stick to unlock all of Lisa's costumes and trophies for the current game session. If you entered the code correctly, you will hear Bart laugh.

Marge's costumes and trophies - At the main menu, press Y, X, Y(2), X, click Right Analog-stick to unlock all of Marge's costumes and trophies for the current game session. If you entered the code correctly, you will hear Bart laugh.

Cliché locations - The following is a list of all Clichés and their location:

1. Double Jump (found in The Land Of Chocolate)
2. Wooden Crate (found in Bartman Begins)
3. Pressure Pads (found in Bartman Begins)
4. Temporary Power Up (found in Around The World in 80 Bites)
5. Combo Punch (found in Around The World in 80 Bites)
6. Giant Saw Blades (found in Lisa The Tree Hugger)
7. Explosive Barrel (found in List The Tree Hugger)
8. Invisible Barrier (found in Mob Rules)
9. Cracked Up (found in Mob Rules)
10. Rift Portal (found in Enter The Cheatrix)
11. Switches and Levers (found in Enter The Cheatrix)
12. Collectible Placement (found in Invasion Of The Yokel-Snatchers)
13. Obvious Weakness (found in Shadow Of The Colossal Donut)
14. Can't Swim (found in The Day Of The Dolphin)
15. Chasm Death (found in Bargain Bin)
16. Time Trial (found in Bargain Bin)
17. Lame Tutorials (found in Game Engine)
18. Trampolines (found in Medal Of Homer)
19. Escort Mission (found in Medal Of Homer)
20. Enemy Spawners (found in NeverQuest)
21. Infinte Ledge Hang (found in Grand Theft Scratchy)
22. Lava (found in Big Super Happy Fun Fun Game)
23. Flying Boat (found in Big Super Happy Fun Fun Game)
24. Elemental Enemies (found in Big Super Happy Fun Fun Game)
25. Key Card (found in Game Engine)
26. Evil Genius (found in Five Characters in Search Of An Author)
27. Re-Used Enemies (found in Game Over)
28. AI Running into Walls (found in Springfield)
29. Steep Slope Barrier(found in Springfield)
30. The Doors (found in Springfield)
31. Collecting Every Cliché

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

Press START to Play (5 points): Easiest achievement… ever.
Chocolate Victory (10 points): Finish The Land of Chocolate.
Heist Hijinx (10 points): Finish Bartman Begins.
Burger Victory (10 points): Finish Around the World in 80 Bites.
Burns Baby Burns (10 points): Finish Lisa the Tree Hugger.
Fight the Power (10 points): Finish Mob Rules.
Power Up! (15 points): Finish Enter the Cheatrix.
The Alienator (15 points): Finish Invasion of the Yokel-Snatchers.
A Passive Fish (15 points): Finish The Day of the Dolphin.
Mmm Donut (15 points): Finish Shadow of the Colossal Donut.
Save the Simpsons (15 points): Finish Bargain Bin.
Victory at Sea! (25 points): Finish Medal of Homer.
Dragon Slayer (25 points): Finish NeverQuest.
Doggie Dazed (25 points): Finish Grand Theft Scratchy.
Sparkling Defeat (25 points): Finish Big Super Happy Fun Fun Game.
On the Matt (40 points): Finish Five Characters in Search of an Author.
Cloud Nine (100 points): Finish Game Over.
Goes to 11 (30 points): Find all of the collectibles in Springfield.
Dufftacular Finish (50 points): Find all of Homer's Duff Bottle Caps.
Hairs to You (50 points): Find all of Marge's Try-n-Save Coupons.
Doll Crazy (50 points): Find all of Lisa's Malibu Stacy Seals.
Poster Paster (50 points): Find all of Bart's Krusty Kollectible Koupons.
Worst Cliché Ever (50 points): Find all of the Video Game Cliché Moments.
Complete Package (150 points): Finish every episode, find every collectible, and discover every Video Game Cliché Moment.
Fast Times (50 points): Beat every episode target time.
Heavenly Score (20 points): Get a perfect score on the final Boss battle.
Pwnd (0 points): Dude, need help? You've died, like, 10 times...
Challenger (50 points): Win every time challenge.
Chocolate Heaven (5 points): Win time challenge for The Land of Chocolate.
Up and Atom (5 points): Win time challenge for Bartman Begins.
Table Smasher 2000 (5 points): Win time challenge for Around the World in 80 Bites.
Wood Chippin' (5 points): Win time challenge for Lisa the Tree Hugger.
Steady Mobbin' (5 points): Win time challenge for Mob Rules.
Engine Fun (5 points): Win time challenge for Enter the Cheatrix.
Mall Rising (5 points): Win time challenge for Invasion of the Yokel-Snatchers.
Clown Around (5 points): Win time challenge for Shadow of the Colossal Donut.
Nice Cans! (5 points): Win time challenge for The Day of the Dolphin.
Sim Sandwich (5 points): Win time challenge for Bargain Bin.
My Precious (5 points): Win time challenge for NeverQuest.
Shooters Rejoice (5 points): Win time challenge for Medal of Homer.
Maki Roll Mania (5 points): Win time challenge for Big Super Happy Fun Fun Game.
Hot Coffee (5 points): Win time challenge for Grand Theft Scratchy.
Back to the Futurama (5 points): Win time challenge for Five Characters in Search of an Author.
Heavenly Joy (5 points): Win time challenge for Game Over.