his stock photo is a grey cart and the item says it uses a grey cart
The lost levels guys were kinda iffy on the legality all things considered, the game was released in 2010 and is still available for purchase directly from Nintendo on the vc. Also as far as anyone can tell they did not have access to the original source and were forced to implement a ton of hacks into the rom in order to insert the pie factory level back in, which definitely took someone a decent amount of work on Nintendos end unless they outsourced to a rom hacker, who I can only assume is under NDA since noones ever come forward as having done the work. That is definitely biting into profits more than repros which haven't seen retail availability in decades.
Though realistically any repro is pretty sketchy to begin with, I enjoy making repros for myself and others, but I do see a serious issue with the fact that people are basically throwing someone elses hard work (translations, hacks, etc) into a cart without them seeing any of the resulting profit margin.