Here is the list of achievements you can unlock in Bulletstorm for the Xbox 360.
All Bow To Heavy Metal (15 points) – Big head, big headache
Anarchy Master (30 points) – Achieve a score of at least 50,000 as a team in Anarchy mode
Armed and dangerous (15 points) – Grow as a person, experience betrayal. Again..
Big Cheese (30 points) – Perform 50% of the Single Player Skillshots
Blood Symphony (50 points) – Complete the Campaign on Very Hard Difficulty
Bounty Hunter (20 points) – Have a total of at least 75,000 points in Echoes Mode’s total high score
Brutal Chorus (40 points) – Complete the Campaign on Hard Difficulty
Celebrity (40 points) – Perform 75% of the Single Player Skillshots
Chop-Chopper (30 points) – Kill the enemy inside the airborne helicopter in the park
Damsel in Distress (15 points) – Rescue the princess
Destroyer of Worlds (15 points) – Cause major destruction
Destructive Beat (20 points) – Complete the Campaign on Very Easy or Easy Difficulty
Disco Inferno (10 points) – Kill all enemies without leaving the dance floor in the city outskirts
Enforcer (20 points) – Get at least 15,000 points in one Echo round
Environment Master (20 points) – Perform every Anarchy environmental Skillshot
Final Echo (40 points) – Achieve level 65 in Anarchy mode
Fits Like a Glove (15 points) – Meet your new best friend
Golden Idol (50 points) – Perform every Single Player Skillshot in the game
Grilled Meat (15 points) – Prepare a big meal using an improvised electric stove
Guerrilla Tactics (10 points) – Execute at least 25 different Skillshots in one Echo round
Halfway There (15 points) – Get at least 21 stars in Echoes Mode
Hoarder (40 points) – Have a total of at least 150,000 points in Echoes Mode’s total high score
I might be late (20 points) – Kill all enemies during the sprint to the jumpship
Insecticide (10 points) – Destroy 50% of the Electroflies in the Single Player Campaign
Just one last thing (20 points) – Kill all enemies before you reach the escape capsule
Like A Boss (5 points) – Defeat a miniboss in Anarchy mode
Major Malfunction (10 points) – Destroy 50% of the Newsbots in the Single Player Campaign
Master of Disaster (40 points) – Earn 2000 points or more at once
Minced Meat (15 points) – Take out the Mall’s biggest customer
No Man Left Behind (20 points) – Kill all enemies while escaping from the collapsed building
Old School (15 points) – Finish an Echo round without executing a single Skillshot
Om Nom Nom! (10 points) – Feed a flytrap with a Nom parasite
Patched Up (15 points) – Receive a software update for your leash
Pest Control (20 points) – Destroy all Electroflies in the Single Player Campaign
Pointless (10 points) – Execute at least 10 Headshots before you find the first DropKit
Red Barrels (10 points) – Explode all the red barrels on the rooftop while in a helicopter
Remembrance (10 points) – Play three different Echoes
Shooting Star (10 points) – Get at least 1 star on each of the first 14 Echoes
Size Matters (15 points) – Use your biggest weapon
Somebody (20 points) – Perform 25% of the Single Player Skillshots
Space Pirate (10 points) – Drink at least 20 bottles of Nom Juice in the Single Player Campaign
Star struck (10 points) – Get 3 Stars on 10 different Echoes
Stowaway (15 points) – Catch a ride
Straight Edge (10 points) – Destroy at least 20 bottles of Nom Juice in the Single Player Campaign
Supernova (40 points) – Get 3 stars on each of the first 14 Echoes
Team Player (10 points) – Complete 200 team challenges in your career in Anarchy mode
Total Malfunction (20 points) – Destroy all Newsbots in the Single Player Campaign
Violent Melody (30 points) – Complete the Campaign on Normal Difficulty
Wannabe (10 points) – Perform 10 different Single Player Skillshots
Weed Killer (15 points) – Tidy up the back yard
