Me playing my own variations of a few of the Super Mario Themes. Let's see if you recognize the songs!
I wrote this arrangement myself. It's a medley composed of three different themes intertwined by transitions. It's been flavored with different music styles. The first theme (being the main theme) is in big band jazz style, going in to latin. The next (the "star theme", thanks seeingeyequeer) is a, and I can't find a better word, "ordinary-people-by-john-legend-style" going in to faster latin. The third theme (parts of the underworld theme) is in mystic/horror movie style. Finishing off with a little of the main theme again with an ending that fits ;)
It took a long time to make this whole theme thingy work properly. I tried and tried to find a decent ending, but I just couldn't. Didn't have the creativity needed at the time, so I just settled for a christmas style ending. So. what you see is what you get, literally ;)