Larry Jr.

Larry Jr. is a boss that can appear in and the.

He has 22 HP per segment.

Behavior
The number of individual Larry Jr. bodies that can spawn each fight can vary from 1-4. The most common encounter with Larry Jr. is with 2 bodies. There is a chance that a Grub can spawn alongside a shorter Larry Jr. (basically replacing a second Larry Jr.) due to its patterns being very similar to the boss.
 * Randomly moves around the room in the cardinal directions, turning when colliding with walls or obstacles.
 * Larry Jr. can change direction if one of his segments is destroyed.
 * Randomly spawns Poop while moving.
 * Colliding with a Poop destroys the Poop and causes Larry Jr. to turn.
 * Larry Jr. segments can be split into smaller copies of the boss as long as the new Larry Jr. segments are longer than 2 pieces.

Champion Versions

 * Blue: Is 15% larger and has 45% more HP (31.9), but moves more slowly and does not leave poop behind. This version always drops a Soul Heart when defeated.
 * Green: Will occasionally shoot a projectile in the direction he's facing, pausing momentarily as he does so.

Arena
When fighting Larry Jr., he can spawn in the following combinations:
 * 1 body with 8 segments (+ 6 rocks & 12 poops)
 * 1 body with 8 segments (+ maze made from 14 rocks)
 * 1 body with 8 segments (+ maze made from 18 rocks)
 * 1 body with 9 segments
 * 1 body with 9 segments (+ 6 rocks & 4 urns)
 * 1 body with 13 segments
 * 1 body with 4 segments & Grub with 4 parts (+ 6 rocks)
 * 1 body with 5 segments & Grub with 4 parts
 * 1 body with 3 segments & 2 bodies with 4 segments
 * 2 bodies with 3 segments & 2 bodies with 2 segments
 * 2 bodies with 4 segments
 * 2 bodies with 4 segments (+ 10 rocks)
 * 4 bodies with 2 segments (+ 3 rocks in the middle)

Trivia

 * Larry Jr. appeared in the original The Binding of Isaac.
 * The Hollow is the posthumous version of him.
 * Larry Jr. is an allusion to Larries' Lament, the name for a group of bosses in Edmund McMillen's game, Super Meat Boy.
 * Not only do they look similar but smaller Larries came from a dead Larry in the Super Meat Boy credits. This is a strong indication that those smaller Larries and Larry Jr. are the same.
 * In battle, Larry Jr. seems to be crying and has blood on the lower belly of his body, unlike the splash screen before the fight.
 * Larry Jr. might be a reference to the centipede enemies from the 1980 arcade game Centipede.