At Temple Run: Brave you can buy other outfits for Merida. To unlock the following outfits you need 10000 coins.

Costume	How to unlock
Quilted Raiment	Available after 10,000 coins.
Royal Gown	Available after 10,000 coins.
Shadow Armor	Available after 10,000 coins.
Tartan Safeguard	Available after 10,000 coins.
Woolen Covering	Available after 10,000 coins.