The following illustration isn't just pretty; it's also pretty appropriate--especially if you're aware that before they settled on Mega Man the brass at Capcom contemplated calling their now-iconic character Rainbow Man.
German artist bartotainment is responsible for the image above, by the way. To see more examples of his work--the bulk of which is game-inspired--pay a visit to his Flickr photostream.
See also: Mega Man, Rock Man or ... Rainbow Man?!?