Reign of Bullets achievements

Kill a boss without having weapons equipped

Have 10 available weapon slots on your ship

Complete all 40 levels with an S-rank

Equip 10 epic weapons on your ship

Spend a total of 1,000,000 scrap on ship improvements

Use the shield to absorb a total of 50,000 damage

Clear a level on the highest difficulty

Clear a level with only 1 HP remaining

Complete level 1 to 10 with an S-rank

Have 5 available weapon slots on your ship

Spend a total of 10,000 scrap on ship improvements