Here is the full list of all 38 Bully: Scholarship Edition achievements worth 1,000 gamerscore.
100% completion.
Complete All Missions
Collect 250 clothing items.
Complete All Bike Races
Complete Chapter 5
Complete Chapter 4
Give 50 wedgies
Travel 100 km on the bike.
Complete All Go Kart Races
Complete ½ of all Go Kart Races
Travel 50,000 meters on the skateboard
Complete All Paper Route Missions
Break 300 bottles at the shooting gallery.
Egg 25 cars.
Pick 50 flowers
Buy 100 sodas
Achieve A High Score on Consumo, Nut Shots, and Monkey Fling Arcade Games
Complete 30 Errand Missions
Complete All Lawn Mowing Jobs
Complete Chapter 3
Beat up 200 opponents
Travel 100,000 meters on foot.
Perform 200 wheelies on the bike.
Complete 20 Errand Missions
Receive 20 kisses from the gents.
Complete Chapter 2
Hit people with stink bombs 50 times.
Trip 25 people with marbles.
Complete 10 Errand Missions
Complete All 4 of the Carnival Games once
Kick 100 soccer balls.
Say 100 taunts.
Receive 25 kisses from the ladies.
Complete Chapter 1
Complete 9 Classes
Complete 6 Classes
Spend 5 hours out after curfew
Complete 3 Classes