Fake or real DS cartridge

[kakapo]

Hi can anyone tell me if this copy of wild world is real or fake? It runs great, it just doesn't look like most cartridges online... (like its a darker green without spots and also Harriet looks different.

 

[kakapo]

I did ask my dad about it since he got it at gamestop and he said that the employees might have just put a fake label on there if it wore off but the cartridge itself is genuine