Vs. Susie, exactly as how you remembered it. Sorry for the inaccuracy, i'm not the best at recreating melodies.
I heard this instrument preset and immediately thought of Vs. Susie, so i made a remix of it with said instrument. Toby Fox made Deltarune and the original song. If you have Deltarune, go play it right now. If you don't have Deltarune, go buy it so you can play it. If you don't have money, go to your friend so you can play it. If your friend doesn't have the game, nudge them to buy it so you can play it. If your friend also doesn't have money, start a business to make money to buy the game. If you can't start a bussiness, get a job. If you can't get a job, then you need to go to school. If you can't afford school, get a job. If you can't get a job, then you need to go to school. If you can't afford school, get a job. If you can't get a job, then you need to go to school. If you can't afford school, get a job. If your stuck in a loop, get a loan. If you can't get a loan, steal. If you can't steal, start a market where you give away stuff for money. If you don't have stuff to sell, sell your house. If you don't have a house, beg for money on the street. If you can't beg for money on the street, you have quite the problem on your hands. If you don't have hands, put the problem in a box. If you don't have a box, get paper to make cardboard. If you can't get paper, cut down a tree. If there are any trees due to the apocalypse, i dunno man, give up. If you don't have up, question your life choices. If you don't have a life, that explains why you're reading this. (Gotcha there, didn't i :D)