I just loaded up this game and played for a bit. It runs fine on Windows XP in 95/98 compatibility mode. For those of you who liked Stupid Invaders, it reminds me a little of that game. Very bright and colorful, easy point and click interface, silly, and perhaps a section or two that some will find either funny or tasteless. I'm having fun with it so far.
Oh, and I picked it up on German eBay. The same guy I bought it from a couple years ago is still selling it (I just checked). The outside of the jewel case is in German (as is the installation), but the game is in English.
It's from the same company that published Celtica, and there's certainly no similarity whatsoever.
Here is a review: REVIEW