Here is the full list of all 16 Bad School Boy achievements.
Shot the teacher during lesson
stick the teacher with glue
Get your cheat with buble power
Get your cheat with fly power
Get your cheat with magnet power
Get your cheat with drill power
Get more than 7/10 on year 1
Get more than 7/10 on year 2
Get more than 7/10 on year 3
Get more than 7/10 on year 4
Get more than 7/10 on year 5
Make 14000 points damage during one lesson
Shot 3 hands of first pupils during one lesson
Get 5 cards during one lesson
Get 10 cards during one lesson
Got 10/10 once !