Piles of untouched Happy Meals littered sidewalks outside McDonald’s restaurants in Japan over the weekend, as frenzied customers scrambled to buy limited-edition sets with Pokémon cards.

Fans swamped the restaurants to collect the cards, with some discarding bags of food after buying, and police called in to mediate disputes.

Piles of untouched Happy Meals littered sidewalks outside McDonald’s restaurants in Japan over the weekend, as frenzied customers scrambled to buy limited-edition sets with…