Piercing

Piercing is a stat that indicates how many enemies the projectile can pierce through before disappearing.

Piercing projectiles deal full damage to every enemy they hit, except for Grenade Launcher, which deals half the damage for the pierced projectiles.

If a projectile has both Piercing and Bounce, it will pierce until it cannot pierce anymore then bounce.

Projectiles

Most projectiles in the game start with 0 Piercing. There are some exceptions:

• Two weapons start with 1 Piercing:
  • Shotgun
  • Crossbow
• Flame Cannon starts with 999 Piercing
• Some summons have 9999 Piercing:
  • Ghost Friend
• One summon has 1 Piercing:
  • Dragon Egg - Dragon

Upgrades

Name	Img	Piercing	Effects	Type
Penetration		+1	Bullet Speed +15% Piercing +1	Upgrade
Reaper Rounds		+1	Bullet Damage +20% Piercing +1 Bullets additionally pierce killed enemies.	Upgrade
Gun Mastery		+1	Bullet Damage +15% Fire Rate +15% Reload Rate +15% Max Ammo +1 Piercing +1	Synergy
Kunoichi		1	Increase Fire Rate by 10% and Piercing by +1 every 10 seconds. This bonus is reset upon getting hit.	Synergy
Tome of Power		+1	Bullet Damage +50% Bullet Size +100% Piercing +1 Fire Rate -25% Max HP -1	Tome
Strong Will		+2	When Diamond's HP is at or below half of Max HP, increase Piercing by +2 and Knockback by +25%.	Diamond's Upgrade
Cadence		Infinite (every 3rd shot)	Every 3rd shot has infinite Piercing and double Bullet Size. This shot also deals +20% extra damage per rank (+100% max).	Rune