Cod Worm

A Cod Worm is a special variant of the Para-Bite in an immobile shell that can be found in Chapter 4. It was introduced in the vanilla content of The Binding of Isaac: Rebirth. Instead of chasing Isaac like the regular Para-Bites, the Cod Worm stays in its shell and will spew a burst of blood shots if shot at. After some time, it will reveal itself and become vulnerable to attacks.

• A cod worm is an aquatic parasite of marine fish.
• Cod worm has a resemblance to the Pokémon Shuckle.
• Prior to Booster Pack #5, if a Cod Worm was killed before enemies finished spawning, the Cod Worm would die, even in its invincible form. The Binding of Isaac: Rebirth
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