Undifferentiated Daimons were creatures created in the anime from leftover Daimon Eggs that did not fuse with another inanimate object. They were pinkish-red blobs with a gelatinous body.
They first appeared after the Sailor Guardians infiltrated Mugen Academy in the later parts of the third season. Where they lacked intelligence, they made up in using pure force to overcome their enemies. Albeit they did not have a way to defend themselves, their sheer numbers and ability to merge with each other, made them a threat regardless. A number of these Daimons attacked the helicopter that Sailor Uranus, Sailor Neptune, and Sailor Pluto were in while they attempted to enter Mugen Academy and they caused the helicopter to explode. Sailor Uranus and Sailor Neptune were only saved by Sailor Pluto using Time Stop. After Pharaoh 90 appeared on Earth, most of them disappeared. One survived and later fused with Professor Tomoe's Daimon Oven that created the previous Daimon Eggs and became Renji.