I was planning on doing it, and I actually did it.

SuperNaturalBoden but he's an UNDERTALE Sans AU.

It may be just a re-color of my profile picture sprite art, but I honestly like how it turned out. Hell, maybe this will become an actual AU or mod some day, but that will be very unlikely to happen (idkw I decided to bring that up). I also might animate this sprite in the future.

If I had my own Megalovania, it would definitely be this beat swap:

https://www.youtube.com/watch?v=09tzb8lkMwE&list=PLykLsST07PYsmBkdKNvELt7YVRv2tst0M&index=17

(Video not mine btw!!)