Forza Horizon 6 hides 200 regional mascots across Japan, and each one you smash gives out 5,000 CR. When you sum that up, one million Credits if you collect them all.
Mascots are easy to find as they sit beside roads and not on roofs or out-of-reach places, unlike XP Bonus Boards. These are marked as purple face icons once you’ve driven near them, and don’t require any special stunts to destroy.
