So Pyramad looks like an interesting game. Interesting enough that I tried my hand to try and find a way to register it. MagiCastle is long gone, sadly. Not able to buy it, the old '05 Serial Box had nothing and I've spent the past couple of days attempting and failing to use MacsBug in QEMU to try and find a way around it. I can certainly say I've learned a lot but I sadly don't know what I'm doing. I just can't seem to find a good breakpoint, via traps or otherwise, to get in as registration is being checked.
Maybe there's a reason why there isn't anything as far as this game goes. But heck, throwing this out there, there's far more knowledgeable people here than I, and I'd send the $20 registration fee to anyone who figures it out (or gets it registered in any way, for that matter), especially if they explain the process of how they got to that point. I'd love to know!