Here is the full list of all 15 Boiling Bolt achievements.
Level 1 complete
Buy one stuff in shop
Level 2 complete
Level 3 complete
Level 4 complete
Oh my God! You killed Enkidd
You did it! You beat every level
First S rank
One step to be the very best
10 challenges complete
All challenge clear
To several is better
Really?? Are you ready now?
Watch the credit menu for the first time
Good job you are Loyd now