I was listening to this so yesterday and today for nostalgia

https://www.youtube.com/watch?v=4sq2lPNxi7M

And sans and papyrus version

https://www.youtube.com/watch?v=4lPZyaNRiAg

https://www.youtube.com/watch?v=yJhG02AWfoU
https://www.youtube.com/watch?v=yJhG02AWfoU

So much nostalgia!!! Plus they play it in sansgotchi!