TOKYO, June 7 — McDonald’s Japan is offering one lucky customer the chance to strike gold by winning a solid-gold nugget worth US$2,000 (RM8,160).

The nugget is part of McDonald’s Japan’s campaign to launch a new character: Kaito Nuggets, which translates to ‘Phantom Thief Nuggets,’ USA Today reported.

The new character — that brings to mind the fast-food giant’s iconic Hamburglar — wears a black mask, top hat and a bright yellow suit with a red bow tie.

To win the nugget, USA Today said participants have to help find out who is behind Kaito Nuggets’ mask and post where he’s found with a hashtag #怪盗ナゲッツthat translates to “Kaito Nuggets”.

The newspaper, citing a statement by McDonald’s Japan, reported that “Kaito Nuggets appears in some McDonald’s restaurants throughout Japan to hunt the... great-tasting sauces… or he will throw out a ceremonial first pitch in a professional baseball game. He will appear every here and there.”

Those “great-tasting sauces,” which the contest also promotes, are Creamy Cheddar Cheese Sauce and Fruits Curry Sauce.

Only one person will win the 50g golden nugget, but 21 people will win a coupon for free five-piece nuggets. The contest runs June 8–28.