Cash

Cash is the in-game currency of the Splatoon series. Within the Mario franchise, it appears in Mario Kart 8 Deluxe on the Urchin Underpass battle course when playing in the Coin Runners or Renegade Roundup modes, replacing coins, similarly to Rupees in Hyrule Circuit and Bells in Animal Crossing. Also like Rupees and Bells, they make a unique sound effect when collected.

Due to coins not being accessible from Item Boxes in Battle Mode, it is impossible to obtain cash via an Item Box.