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