Here is the full list of all 31 Mad Bullets achievements.
Reach level 20!
Reach level 12!
Complete 7 daily goals!
Purchase all upgrades!
Shoot 300 piranhas!
Shoot 100 iron bandits!
Shoot 150 ninjas!
Fire your gun 1000 times in a single round!
Shoot 50 bullets right in front of your face!
Shoot 1000 most wanted posters!
Complete 30 goals!
Shoot 75 pieces of underwear!
Avoid injuries in the first 5 minutes of a single round!
Reach level 6!
Complete all dangerous areas without losing a badge!
Shoot all kinds of objects at least once!
Shoot 50 bathtubs!
Don't let enemies escape for 3 minutes!
Die within the first 15 seconds of a single round!
Shoot 50 sacks in a single round!
Return to the village after paying a visit to every scene in a single round.
Keep earning score for 2 minutes without stopping firing for more than 3 seconds!
Survive the rocky area without losing any badges!
Shoot all bandits at least once!
Visit all scenes at least once!
Shoot 500 bandits!
Survive the Mexican area without losing any badges!
Shoot 50 enemies in a row before they shoot!
Survive the village without losing any badges!
Spend money in the shop!
Reach level 2!