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