Hyperius Bullets are Hardmode bullets crafted from Life Alloys. When used to hit an enemy, another bullet is brought from the left or right edge of the player's screen to pass through the enemy's position, at the time of being hit.
- The name of this bullet is most likely a reference to the boss enemy in Borderlands 2, named Hyperius the Invincible. The effect of the bullet is also a reference to the Conference Call weapon, found in Borderlands 2. Both Hyperius and the Conference Call are affiliated with the manufacturer Hyperion.
- "Your enemies might have a bad time" is a reference to the character Sans from Undertale.
- In the mod's source files, the extra bullet projectile is referred to as 'OMGWTH'. This is likely a reference to a boss of the same name, also produced by Hyperion.
- The bullet in this item's sprite resembles a recolored Copper Coin.