Event token

Event tokens are special green coins that appear during certain events in Mario Kart Tour, starting with the Wild West Tour. During the second week of the Wild West Tour and the Super Mario Kart Tour, event tokens appeared in all courses in a tour, where they replace several of the normal coins in a random manner. They could also be obtained from item boxes, from other drivers who have gotten hit, and from the Coin Box Special Item. During the second week of the Pirate Tour, they can be earned from landing hits with shells. During the second week of the Summer Festival Tour, they can be earned from landing hits with Bob-ombs.

Event tokens can then be used to purchase items from an Event Shop that is similar to the normal Shop, though items that don't appear in the normal Shop appear in the Event Shop, such as points-cap tickets and rubies. Players can only have as much as event tokens as needed to purchase all of the items in the Event Shop, after which they will stop appearing on courses.

Event tokens are very similar in appearance to the Bonus Medals in Super Mario Run, having a similar Super Star design on them.

Profiles

 * Mario Kart Tour Twitter:
 * "A limited-time event in which you collect event tokens is on now! During the event, event tokens will appear and can be exchanged for drivers, rubies, and more in the Event Shop. Collect as many as you can in a week and exchange them for great items!"
 * "Collect event tokens by landing hits with shells in this limited-time blue event available now. You can exchange these tokens for great items like rubies and points-cap tickets in the Event Shop, so don't let this opportunity pass you by!"
 * "Collect event tokens by landing hits with Bob-ombs, then exchange them for great items in the limited-time blue event available now. This is the time to shine for drivers with the Bob-omb family of special items like Wario and Black Shy Guy!"
 * "We just extended the event! Grab event tokens scattered throughout blue courses and exchange them for items at the Event Shop. Event tokens can come out of the Coin and Coin Box items too!"