Hi I’ve been looking for this movie forever

Its animated, cartoonish. (not anime) I remember the villain being named Mock and there was a blue character who I believe eventually shows his as at some point in the movie at or near a train / subway stop.

Really this is all I can recall from this movie. Your help is appreciated

Keith

Rock & Rule (1983) (http://www.imdb.com/title/tt0086203/) ?

Rock & Rule (1983) (http://www.imdb.com/title/tt0086203/) ?

Thank you, you are right that's it.
This was quite easy, thanks again. (you have no idea how long its been killing me the name of this movie) :) cheers