Update?

My granddaughter and I like to play this game a lot when she comes to visit. We have over 8 million in dollars but can’t exchange it for coins because it says that my computer system needs updated to lion 10.6. That would be going backwards for me because I have Yosemite 10.10.2. Doesn’t RC mini racers operate correctly with Yosemite?

imn2u about RC Mini Racers