ROBOTROBOTROBOT is actually green!
This is an easy mistake to make since BENSON BENSON BENSON often takes place in an orange environment due to the simple fact of having triocular vision. In other worms, due to us humans having three eyes on each stalk, plus parallax issues caused by eyeball hairs being entangled in quantum space, each eye has a different red shift due to slightly different hearing abilities in each. This is the same thing that is responsible for the "what color is this dress and does it make her butt look too big?" meme.
Of course, if you happen to be colorblind, you will not see this interesting effect and your brain will just asplode. We probably should have warned you about this earlier, but you were busy doing something else because of your short attention span. More on this intriguing phenomenon from Dr. Neil deGrasse Tyson when you get to Hell, limbo or East Kentuckistan.