This is a truly ambitious song! I think it's one of your best! It makes me wish you still made stuff here. Well, there was that new song. At first, I thought this would be like something from Banjo-Kazooie. It actually was, but I didn't recognize it until I read the description.
The buildup was simply amazing. You know how to make such joyous music. You really get a sense of victory with this song. It can apply to a lot of things. You're great with mashups like this. You should really do more!