Complete the following tasks to get the corresponding GamerScore.

After Hours - GamerScore 20:
Spend 5 hours out after curfew.

Green Thumb - GamerScore 20:
Complete ALL Lawn Mowing Jobs.

Green Thumbs Up - GamerScore 20:
Pick 50 flowers.

Helping Hand - GamerScore 20:
Complete 10 Errand Missions.

It's All in the Wrists - GamerScore 20:
Complete ALL 4 of the Carnival Games once.

Junior - GamerScore 20:
Complete Chapter 3.

Keener - GamerScore 20:
Complete 3 Classes.

Kickin' the Balls - GamerScore 20:
Kick 100 soccer balls.

Little Angel - GamerScore 20:
Complete 20 Errand Missions.

Black & White & Read All Over - GamerScore 20:
Complete ALL Paper Route Missions.

Casanova - GamerScore 20:
Receive 25 kisses from the ladies.

Down for the Count - GamerScore 20:
Beat up 200 opponents.

Watch Your Step - GamerScore 20:
Trip 25 people with marbles.

Dual Nebula - GamerScore 20:
Achieve A High Score on Consumo, Nut Shots, and Monkey Fling Arcade Games.

Soda-licious - GamerScore 20:
Buy 100 sodas.

Sophomore - GamerScore 20:
Complete Chapter 2.

Speed Freak - GamerScore 20:
Complete ½ of ALL Go Kart Races.

Teacher's Pet - GamerScore 20:
Complete 6 Classes.

The Champion - GamerScore 20:
Complete ALL Bike Races.

Senior - GamerScore 20:
Complete Chapter 4.

Eggsellent! - GamerScore 20:
Egg 25 cars.

Freshman - GamerScore 20:
Complete Chapter 1.

Over the Rainbow - GamerScore 20:
Receive 20 kisses from the gents.

Pole Position - GamerScore 20:
Complete ALL Go Kart Races.

Glass Dismissed - GamerScore 25:
Break 300 bottles at the shooting gallery.

Marathon - GamerScore 25:
Travel 100,000 meters on foot.

Momma's Boy - GamerScore 25:
Complete 30 Errand Missions.

Sharp Dressed Man - GamerScore 25:
Collect 250 clothing items.

Skate Pro - GamerScore 25:
Travel 50,000 meters on the skateboard.

Skidmark - GamerScore 25:
Give 50 wedgies.

Smart Mouth - GamerScore 25:
Say 100 taunts.

Smell Ya Later - GamerScore 25:
Hit people with stink bombs 50 times.

The Wheel Deal - GamerScore 25:
Perform 200 wheelies on the bike.

Tour De Bullworth - GamerScore 25:
Travel 100 km on the bike.

Boy Genius - GamerScore 30:
Complete 9 Classes.

Graduate - GamerScore 40:
Complete Chapter 5.

Mission Accomplished - GamerScore 75:
Complete All Missions.

Perfectionist - GamerScore 125:
100% completion.

Enter the following codes on a second controller at any point during gameplay (except cut scenes) to enable the corresponding effect in the game.

Unlock ALL Weapons.
Hold LB and press Up(4).

Unlock ALL Clothes:
Press LB(2), RB, LB(3), RB(2).

Get Extra Money:
Hold LB and press Y, X, B, A.

Unlock Infinite Ammo:
Hold LB and press Up, Down, Up, Down.
Enter code again to disable effect.

Unlock Full Health:
Hold LB and press RT(3)
This code has no effect on Kissing level.

Unlock ALL Gym Grapple Moves:
Hold LB and press Up, Left, Down(2), Y, X, A(2).
This will not appear on the stats screen.

Unlock ALL Hobo Fighting Moves:
Hold LB and press Up, Left, Down, Right, Y, X, A, B.
This will not appear on the stats screen.