Decoe is one of Dr. Eggman's bumbling, yellow, robotic assistants. He's tall, slender, and often appears more intelligent or, at least, more articulate than his counterpart, Bocoe. Decoe frequently acts as the straight man to Eggman's grandiose schemes and Bocoe's less sophisticated demeanor, sometimes even questioning Eggman's logic, though never directly disobeying him. He's generally timid and easily flustered, often found panicking or lamenting their failures. Despite his intellectual edge, Decoe is ultimately loyal to Eggman and participates in all of his villainous plans, even if he often ends up as collateral damage or the target of Eggman's frustration. He contributes significantly to the comedic relief in the series.