Sludge (Disgaea 3)

The Sludge is a monster class in Disgaea 3: Absence of Justice. It is a rather primitive monster, but quite difficult to get rid of.

The Sludge, as its name suggests, is a giant blob of sludge composed of unknown material. They come in a variety of colors, but all of them have a horned skull on their (assumed) head area. It is unknown whether or not this is actually their skull or just one they found. The Sludge is one of the newer monsters and one that the player can access pretty early in the game. Despite being an early class, the Sludge has an unusually high Defense aptitude. Coupled with its native Evility, Gel Body (which cuts the damage received by non-elemental attacks in half), the Sludge is almost unstoppable by using only physical weapons. However, despite its enormous Physical Defense, its Magical Resistance isn't very good, meaning spell-casting can easily put a stop to them.

Trivia

 * The tiers of the Sludge class are named after blob-based monsters from other RPGs.
 * Prism Red is accompanied by various Sludges during the fight with him, one of each tier. These are most likely to replace the missing Prism Rangers.
 * When talking to a Sludge in the Classroom, it will sometimes say "Unlike this other famous slime, I don't combine and become a king." This is referencing the Dragon Quest series, as when in a battle with multiple Slimes on Dragon Quest, they combine to form a King Slime.