Here is the full list of all 35 Boom Box Blue achievements.
Level up to to Max level
Level up to level 30
Blow up 30 Grey boxes
Become tiny
Level up to level 25
Blow up 20 Grey boxes
Blow up 100 Pink boxes
Blow up 15 Grey boxes
Blow up 50 Green boxes
Blow up 150 Yellow boxes
Level up to level 20
Become fat
Blow up 9 Grey boxes
Blow up 35 Green boxes
Blow up 1000 Red boxes
Blow up 50 Pink boxes
Blow up 100 Yellow boxes
Blow up 20 Green boxes
Level up to level 15
Blow up 500 Red boxes
Blow up 3 Grey boxes
Blow up 25 Pink boxes
Level up to level 10
Blow up 10 Green boxes
Blow up 50 Yellow boxes
Blow up 5 Green boxes
Blow up 15 Pink boxes
Blow up 10 Pink boxes
Blow up 300 Red boxes
Blow up 25 Yellow boxes
Level up to level 5
Blow up 15 Yellow boxes
Blow up 150 Red boxes
Blow up 50 Red boxes
Spew out your meal