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