Bombing Busters
13 Achievements
7-9h
PSVITA
PS4
Ready for the Boss
Complete all Fairy levels before the Fairy Boss
18.1%
How to unlock the Ready for the Boss achievement in Bombing Busters - Definitive Guide
There are 5 levels to complete before the Fairy Boss level gets unlocked. You don't need to get 3 stars on any of them, just beat them.
For tips on how to beat the levels and getting 3 stars on them, please refer to Total Buster.