Bob's Rotten Head

**Bob's Rotten Head** is an activated item.

## Effects

* Upon use, Isaac holds a poison Bomb which can be thrown in the cardinal directions and explodes on impact.
	+ The bomb can fly across the room for 9.5 tiles before falling to the ground and explode.
	+ The explosion deals a flat 50 + Isaac's tear damage and poisons affected enemies.
	+ The explosion deals a flat 185 + Isaac's tear damage and leaves behind a gas cloud that poisons affected enemies. The poison cloud deals 5 damage.
	+ The poison deals 6 or 8 points of damage over time.
	+ The poison deals 3 times Isaac's tear damage over time.
	+ It will bounce off walls slightly before exploding on the floor.
* This item belongs to the  set. Collecting three items from this set will transform Isaac into Bob.

## Notes

* This item can drop from Sloth.
* Bob's Rotten Head is affected by many tear modifiers and some bomb modifiers. Notable exceptions and precautions are listed below.
* Bob's Rotten Head passes through Beggars, Slot Machines, or Blood Donation Machines, but can destroy them with the blast damage if it impacts anything nearby.
* Can open open Secret Rooms, Super Secret Rooms, or destroy rocks like any other bomb.
* Certain interactions require Flat Stone to be effective or work.

## Interactions

* /  /  /  /  /  / : No effect.
* : No effect.
	+ The explosion leaves behind a poison cloud.
* : Bob's Rotten Head leaves a pool of red creep on the ground after each explosion.
* : Spawns wisps in the middle ring. The wisps shoot arcing green tears with decreased range, with a 7.5% chance of firing an explosive, poisonous tear.
* : No effect.
* : Spawns 1-3 smaller heads that explodes for half the damage of the bigger one.
* : Bob's Rotten Head can now travel through walls and appear out of the opposite wall, similar to a portal-type mechanic.
	+ No longer travels through the wall; instead he bounces off it, like with , and then travels for the rest of its duration at a slower speed and then explodes.
* : Spawns four smaller heads that explodes for half the damage of the bigger one.
* / : If Bob's Rotten Head sticks to an enemy (sometimes with Explosivo, always with Sticky Bombs), the explosion is delayed but will deal 110 damage.
	+ No longer sticks to enemies.
* : Isaac can control the mid-flight direction of the head, however its air-time is not increased.
* : Will cause Bob's Rotten Head to bounce once, exploding twice and leaving two gas clouds.
* : Creates fire when the head lands.
* : Creates a Godhead aura around the head and applies homing effect when thrown.
* : When the head lands, tears are fired.
* : Has a chance to throw a Holy Light head that spawns a damaging beam of light dealing (4x) 3x the explosion damage when it hits an enemy.
* Homing tears: Homing is applied to the thrown head as well.
* : Causes two smaller tears to appear that explodes for half the damage of the head. Tears do not look like the normal head.
* : Causes the head to bounce off of rocks and walls.
* : When used, Bob's Rotten Head will orbit the player similar to a tear.
* : **Not recommended** as it explodes multiple times before reaching its target, dealing explosive damage and knockback to Isaac.
	+ Shoots a white blast of light instead of the head that pierces through enemies, and causing explosions when it contacts an enemy (if not killing it at the first tick), an obstacle, or when it runs out of range. One tick of the beam deals 33% of Bob's Rotten Head's damage to enemies, but the resulting explosion every tick deals full damage.
* : Enemies are frozen when dying to Bob's Rotten Head.
* Worm Trinkets: Bob's Rotten Head is affected by trinkets like  and  the same way tears are.

## Unlockable Achievements

* Lil Spewer - Have Isaac die to his own explosion from , , or a Horf! pill.

* The Parasite - Pick up any 2 of the following items in a single run: , , , and  ( Any 2 items that have the 'dead' item tag).

## Gallery

* 3DS The icon of Bob's Rotten Head as seen on the lower 3DS screen.

## Trivia

* The item's appearance is similar to Pestilence's head.
* Sloth's full name is Bob Sloth, revealed in a QnA. Because Sloth drops this item, it may be his head.