"Renge" is named after the color orange, which matches the other "Dark World" color puns.
This could be seen as unlikely as it is a Normal Monster, yet orange is the color of Effect Monster cards. However, "Renge"'s palms are orange-colored.
This is the first "Dark World" monster to be printed in Chinese, and unlike other "Dark World" monsters printed later, its Chinese name (橙黃, which simply means "orange yellow") doesn't contain any transcription/transliteration or portmanteau.
Renge's chest and stomach appear mechanical, despite this card being a Fiend-Type monster.