Affiliate Marketing Secrets

I need to create a storefront on my website that sells products via links to an affiliate’s website. In other words, the products will not be in my inventory, but the link they click will take them to their site.

I would like to sell a few different products filling a specific niche – however, they would be related to Nintendo trademarked products.
Do I need to become licensed to sell nintendo type product?
If so, how do I do that?
Seeing as how I’m based out of Canada, and they are based out of Japan, would I be liable if I went ahead and did it anyways? I’m almost positive they can reach you anywhere, but figured I would ask anyways.