https://www.gamespot.com/articles/you-can-get-dissidia-final-fantasy-nt-dlc-by-buyin/1100-6455905/

Final Fantasy XV has received its share of unusual DLC items in the months following its launch, but perhaps the most bizarre was the infamous Cup Noodle hat, which could be acquired in Japan by purchasing a Nissin Cup Noodles pack and redeeming a code. (It was later released in other regions as a free download.) Square Enix is partnering with Nissin again for a similar promotion, this time for its upcoming PS4 fighting game, Dissidia Final Fantasy NT.

Players who purchase a specially marked package of Cup Noodles will receive a download code for Final Fantasy XV protagonist Noctis's Royal Raiment outfit. The promotion is available now, but it's currently limited to residents in the US. You can see an image of the specially marked Cup Noodles packages below.