Needlous is a cute little larval enemy with yellow and black stripes running along its small, slug-like body. Its body has eight sharp pointy spikes along its back. When it curls up in a ball to ward off predators, it becomes able to travel at a breakneck speed. It has small, beady black eyes. As a ball, the spikes completely cover the outer section of its body, making it a complete hazard if Kirby approaches.
In Kirby: Nightmare in Dream Land, Needlous essentially replaces Togezo from Kirby's Adventure. Togezo shared similar properties to Needlous. On a regular basis, they move slowly, but they will charge up and roll vigorously at an amazing speed when approached.
Needlous reappears in Kirby: Canvas Curse, acting the same as before.
Needlous appears in Kirby's Return to Dream Land, where its black stripes are now more of a brown color. Needlous also appears in the New Challenge Stages in Kirby's Dream Collection Special Edition as well. It appears in the Smash Combat Chamber and Magolor Race EX.
Needlous's name is a combination of the words needle and louse.
- Needlous's yellow and black coloring makes it look a little like a bee. This fits in with the needle theme, as bees have pointy stingers. However, Needlous was most likely based on the Lophocampa maculata species, commonly known as the Spotted Tussock Moth Caterpillar.
- Togezo and Needlous's tactic of rolling around as a spiky ball later appears as one of Needle Kirby's moves in Kirby's Return to Dream Land.