Thworm

Thworm (千匹ミミズ, Sen-biki mimizu) is a worm animal whose body can be found in the southern section of Rainbow Rocks.

Characteristics
Thworm is a long and slender, limbless creature. It's body is a mixture of yellow and reds. For it's head, it has a bit of a "snout" and two tentacles branch out to hold it's eyes, which have dark, horizontal pupils. Attached to it's tail end is a gold prong mounting a green orb.

Hint
Thworm is very perceptive and will run away as soon as it sees the protagonist. Perhaps it can be stopped...

Trivia

 * On the original official website for Moon made in 1998, Thworm’s flavor text was the following: "太古の昔、千匹のミミズが合体して一匹のミミズになったという. ", which translates to, "During the ancient times, it's said that one thousand worms coalesced into one large worm." This makes Thworm's flavor text the most identical to it's text in-game.