Hello. I have a Golden 250 cart that has no labels and looks like it never did. The title screen has the same picture and design as the ones I've seen on youtube etc. but some of the games are different. The cartridge itself is of a slightly different design as well. My best guess is that it's a prototype. I have searched extensively online and the only cartridge i found that's similar to mine was here in the Rarity Guide.com.forum but posted 3 years ago. I would be much obliged if someone could help me with this mystery.