Chub

Chub is a boss that can appear in and the.

Behavior
Chub moves randomly around the room in cardinal directions and can perform the following attacks: Chub deals a whole heart of contact damage.
 * Charges at Isaac whenever he lines up with one of her cardinal directions.
 * Chub eats any Bombs dropped in her path; stunning her for a moment before dealing considerable damage.
 * Spawns a 1-2 Charger up to a maximum of 5 (occasionally 6 if she spawns 2 while there are 4 alive).
 * Chub's charge attack can damage and kill any Chargers.

Champion Versions

 * Cyan: 15% larger and slower than normal, with 25% more HP (437.5). Spawns Black-coloured Boils instead of Chargers. Despite the different color, they behave exactly like normal Boils.
 * Orange: 15% smaller and faster than normal, with 15% less HP (297.5). Spawns Spitties instead of Chargers.

Trivia

 * Chub appeared in the original Binding of Isaac.
 * Sometimes, in the original game, Chub would spawn with only two segments, preventing her from spawning anything. This can also happen in Repentance.
 * Carrion Queen is the posthumous version of her, and C.H.A.D. is the alternate version.
 * She is the boss version of the Chargers.
 * Chub is one of four bosses to have its posthumous version in the same chapter, the other cases being Gemini having Blighted Ovum in chapter 1, Polycephalus having The Stain in chapter 2 and  Tuff Twins having  The Shell in Chapter 2.5.
 * However, Chub doesn't appear in the same environment as Carrion Queen, who appears in while Chub appears in The Caves and the  Flooded Caves.
 * Chub is confirmed to be female.
 * Chub may also be a reference to the Dodongos from The Legend of Zelda, which Link had to toss bombs into their mouths to kill. This is supported by the Rules Card's display of "CHUB DISLIKES SMOKE", a reference to "DODONGO DISLIKES SMOKE" from the original Legend of Zelda.
 * The Matriarch is a boss from Booster Pack that is simultaneously based of Chub, Fistula, and Fistuloid. When at low HP, she will split into Chub.
 * Unlike the usual pattern, if the Chub from The Matriarch eats a bomb, she'll spit it back at the player.
 * Chub is one of the four bosses that can be spawned by It Lives, the other three being Fistula (as of Repentance), Polycephalus and Teratoma.
 * Prior to Booster Pack #5, Chub could spawn Drowned Chargers if she was fought in the Flooded Caves. This also applies to  The Stain.