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