-raises eyebrow-

Please elaborate for us not in the alleged 'know'. :)

I think he means "Krusha". Krusha was activated through one of the cheat codes, and it's true -- his skin (or scales, more likely) is dark blue.

Maybe Rare just has some sort of fetish with these specific colours...:p

Seems like they did!
Tip Tup Choir springs to mind.

Also you can look at the color of the blueprints in DK they look an awful lot like the ? eggs