American Girl: Kit Mystery Challenge! [NDS]
Some of you may notice the presence (albeit pixelated) of two additional outfits in Kit's trunk upon closer inspection. To unlock it, talk to Aunt Millie in the first mystery. She will then mention about making "something special" for Kit after she uses up all the chicken feed. It'll take some time and patience for the sack to be emptied and added to your inventory, and don't worry about solving the main case either as it'll be carried over to the next mystery. After emptying the first sack, talk to Aunt Millie again and then go to your attic. Your Kit will now be able to wear her feedsack dress, and a different-coloured sack will now spawn beside the chicken coop. Do the same with the latter sack to unlock the scooter dress.
Outfit How to unlock
Birthday Dress and Headband Empty the first feed sack.
Scooter Outfit Empty the second feed sack.
When Roger asks "What can you hold without your hands or arms", the answer is: "your breath".