Hi. Are these fake cartridges or they are just unlicensed/unofficial but they are not fake? They all seem to have a green PCD if you look underneath the teeth or contacts. The light gray ones just have philips screws instead of the usual Game Boy cartridge screws:
Thank you. Belated Happy Easter.
By the way, what's the best way to clean the contacts with? They say alcohol since it's acid is corrosive, some say toothbrush and alcohol, some distilled water and toothbrush, some open it up and use a pink rough eraser (or should it be the smoother ones?), some use contact cleaners and a toothbrush or foam like Magic Eraser.
God bless, Rev. 21:4