Board Thread:Speculation, Theories, and Rumors./@comment-2054358-20140410193552/@comment-25102147-20150624020325

When I think about it, maybe Sticks was going to be part of the main series, but the creators wanted people to see who exactly she was before putting in the main series, so they made her a main character in Sonic Boom, and after a while they finally chose to put her in the main series.