1lluminati

Thank you, appreciate help!

Hey guys, I am n00b here but I was wondering if anyone can help me? I have Jumpman Junior cartridge for Coleco Vision & Adam, with box, manual and warranty register card. Box is slightly damaged on the side but nothing major. There are no other logos I can find apart from Epyx. Does anyone know if this is rare (I presume it is) and what is estimate value? Few websites are mentiioning rarity 4 but not sure what does that mean? Cheers