Here is the full list of all 39 Bombshell achievements.
Reach Level 30
Collect all other trophies
Finish Episode 3 on Hard
Completed the game once without using any powerup
Reach Level 20
Finish Episode 2 on Hard
Raise Confidence to the maximum level
Finish Episode 1 on Hard
Raise one of the weapons to the maximum level
Raise Defense to the maximum level
Finish the Whitehouse Prologue on Hard
Finish Episode 3 on Normal
Complete all Heskel Challenges
Reunite with General Holloway
Find all Datalogs
Finish all subquests in the game
Used Amiga to get out of a trap
Died 50 times
Raise Vitality to the maximum level
Use 10 Power Enhancers
Finish Episode 2 on Normal
Collect 50000 KY
Used all heat generators
Reach Level 10
Collected each artifact at least once.
Buy each shop item at least once
Finish Episode 1 on Normal
Distract 5 enemies with the holo bombshell
Killed yourself with the bowlingbomb
Killed 50 enemies with amiga
Kill 10 enemies with humiliation moves
Reached Level 5 without dying once
Kill 50 enemies with the Ion Maiden
Killed 50 insects
Kill 10 enemies with powers
Kill 10 enemies with the mighty fist
Kill 100 enemies
Kill 10 enemies with the bowling bomb
Finish the Whitehouse Prologue on Normal