Based on "Spamton" by Toby Fox from the DELTARUNE Chapter 2 OST.
This uses a lot of the original samples from the EB sf2, but I couldn't figure out what the lead was (I suspect it's Saxophone distorted but I couldn't get it to sound right so I just approximated with a ptv), and I also think the bass has some filtering or something in the original.
I also couldn't find a great match for the phone ring sound online so I just made something up using part of Bicycle Bell from EB and a sample of the ringing from Dialtone.
Version without the detune: https://www.ptweb.me/play/pbte/cPs3fykaWQbsKsAUUCPk3Gh5R5wuYuYjr6ct
Wow man this is amazing