Detonating Bubble

Type	Projectile NPC
Environment	Ocean
AI Type	Detonating Bubble AI
Damage	100/150/225
Max Life	1
Defense	0
KB Resist	100%
Immune to
Debuff	Wet(Desktop, Console, Old-gen console and Mobile versions)
Debuff tooltip	You are dripping water
Chance	100%
Duration	3–8 seconds
Hurt
Killed
Summoned

The Detonating Bubble is a projectile enemy fired by Duke Fishron. It will target the nearest player, directly fly to them, and destroys itself upon reaching the target or after traveling for some distance. It can also be destroyed with any weapon or damage-inflicting tool in one hit. The movement speed of the Detonating Bubble is affected by wind. The hitbox of the Detonating Bubble is initially smaller than its sprite, but the size of the hitbox will have a sudden increase when it is destroyed (from about 2×2-tile rectangle to 6×6-tile)^[1], dealing damage further away.

Duke Fishron summons Detonating Bubbles with varying size by spraying a cluster of them at the player in his first stage, and summons them while spinning in circles in his second stage.