Thanks. Yes, it is an oversight on my part. Originally I had missingo just be the fossil kabutops and made its own header file. Later I made a proper front pic that looks like the traditional missingno. But I forgot to point the header to something other than fossil kabutops. Technically this isn't a bug and nothing is actually glitching. It's just fossil kabutops has the wrong front pic. I'll have to revert fossil kabutops later and reassign the header to a different 'mon value

Hello jojobear13! I'm new to the forum so please don't mind the blank profile. I have been playing your Shin Pokemon hack this month (green version specifically) and wanted to congratulate you on doing a wonderful job! This is what I now consider to be the definitive Gen 1 experience so kudos to you for that. I plan to play it in Red and Blue versions in the future as well. :)

I also wanted to let you know that I found a potential bug in the Pewter City museum. When you check the Kabutop fossil, it displays the Missingno graphics instead of Kabutops. I recall reading that Missingno now uses Kabutops fossil graphics, so thinking it's possible some bytes got switched or something, leading to this bug? In any case, I hope it's something you're able to identify and easily fix!

Thanks again and I look forward to future updates!