Zenny

Zenny (ゼニー Zeni-), Ƶ, is the currency from the Mega Man series. It first appearance in a Mega Man game was in Wily and Right's RockBoard: That's Paradise, and also in Rockman: Battle & Chase and Mega Man X: Command Mission. All of the games in the Mega Man Legends series, MegaMan Battle Network series and MegaMan Star Force Series also use Zennies as a currency. They probably parallel yens in a way as even cheap items tend to be in the 100's.

It is also used in many other games and animated series like Dragon Ball, Breath of Fire and others.