Here is the full list of all 17 Heavy Bullets achievements.
GET BACK AT LEAST $200 WITH LAST WILL OR LIFE INSURANCE
REACH LEVEL 8
SELL A HEAVY ORE
OPEN A SECRET DOOR
REACH LEVEL 5
KILL A SNAKE WITH A KNIFE
REACH LEVEL 2
DIE
BEAT TURRET BOSS WHILE WEARING HIGH HEELS
BEAT THE GAME
BEAT THE GAME, MAKE NO WITHDRAWS
BEAT THE GAME IN UNDER 25 MINS
FIND BOOMBOX
USE RITUAL BLADE 10 TIMES IN A RUN
REACH MAX HEALTH
$10,000 IN THE BANK ACCOUNT
UPGRADE EVERYTHING