Pikmin (Series)

The Pikmin franchise features a small batch of coins, with all of them originating in Pikmin 2, and one of them going on to have a minor role in Pikmin 3.

Pokos
Pokos are the main currency used on the planet Hocotate (and possibly Koppai). Olimar and Louie are tasked with obtaining ten thousand Pokos to repay Hocotate Freight's debt at the beginning of Pikmin 2, and set off back to the planet PNF-404 to collect treasure to sell.