If two of the Klonoa Heroes are included, Pango may as well be invited to join! A Special Attack with cherry bombs is much needed in this game!
Also Jillius, oh man I'm so glad he has so many votes. The fact that Bagoo made his way into this game (in Tat's ending) makes me feel like including Jillius in this game is obligatory. Not to mention, he was a pretty difficult boss, I'd love to see what kind of Special Attack he has up his sleeve!