Here is the full list of all 13 Star Wars Bounty Hunter trophies - there are 9 bronze, 3 silver and 1 gold.
Capture every Secondary Bounty.
Complete Chapter 6.
Find all 18 secrets.
Complete Chapter 5.
Kill an enemy with a manually guided missile.
Complete Chapter 4.
Kill 1,500 total enemies.
Complete Chapter 3.
Kill 1,000 total enemies.
Kill 150 enemies in one level without killing any non-enemies.
Complete Chapter 2.
Complete Chapter 1.
Mark and claim your first bounty.