How to rig this model, including his hat?

So, I have been working with this model for a while now, as I have a very small team of close friends who will be helping me with my game. This is a non-profit HD remake of Zelda: Majora’s Mask.

I was wondering if it would be possible for me to rig this Child Link model in Unity, including his hat. If so, how?

I was also wondering how I would be able to animate him so that when he walks, his tunic moves with his legs…

Any help would be greatly appreciated.


Modify it by moving the bone joints around on the bones/model image in the Skeleton Manager