>>79879737It's just three episodes that got compiled later into a movie with some redrawn and additional scenes.
Then are the sequels iczer three (6 eps) and the 2ep Iczelion(or a retelling don't know) and a prequel manga. You judge if you want to see the sequels or not.
Also it has plenty of other anime/toku references, then it got referenced in the anime/toku episode of an American show, full circle
