>>55465062>but with HGSS forward you can just check if the carts are red with a light.Isn't a guarantee. Some counterfeiters replace the label on a Walk With Me game cart, which also uses the NTR-031 transparent shell.
What you should look for in spotting gen 4 fakes are the font, the label's lower-left cutoff, the down arrow on the front, the font on the Nintendo logo on the back, the serial number on the back (it must match the front), and the PCB code. If it says "MB" or "13" it's a fake. If the label's cutoff is rounded, it's a fake. If the down arrow is engraved, it's a fake. If the Nintendo logo is engraved, it's a fake.