There appears to exist a Klonoa bootleg game. I would show a video of it, but let's just say it's one of THOSE games that likes to pull a sonic.exe-ish game over screen. Do you know about those Mario bootleg games that are full of russian text and scary game over screens? Yeah, I mean one of those, so I'm not going to put a video link here. You probably already know about that, though.
Other than that... No, nothing more I could find.