Complete the indicated task to unlock the achievement.

Achievement	How to unlock
ASSASSIN	x150 kill streak.
BOUNTY HUNTER	Get a total score of 50,000,000.
FIRST BLOOD	Die.
GOOD SHOT!!	x50 kill streak.
GUNNER	Get a total score of 5,000,000.
GUNSLINGER	Reach the highest rank.
HIDDEN CREATURE	Finish Act 3.
JUMPER	Jump 100 times.
PASSAGE	Finish Act 2.
PIRATE	Finish Act 4.
PREPARED	Get no damage in an ambush.
REVENGE	Finish Act 1.
ROLL JUMPER	Roll-jump 100 times.
ROLLER	Roll 100 times.
SHERIFF	Get a total score of 10,000,000.
THE APPRENTICE	Unlock Zero.
THE END??	Defeat the Final Boss.
THE MECH	Unlock Skipp.
THE SNIPER	Unlock Annie.
THE WITCH	Unlock Fara.