Guys, I found it out! :D
My original Megalovania Remix: https://soundcloud.com/kirian-k/undertale-remix-megalovania-vs-sans
REALLY Nice Art, there I found it: https://www.pinterest.es/pin/252905335308966835/
Wanna hear a real Dusttale Remix?: https://soundcloud.com/kirian-k/undertale-au-dusttale-remix-the-murderer

Edit: I made it shorter, because 9 minutes are too long

My Megalovania Remix, But It's Dusttale

Not the best Music, but Music :D
My Youtube: https://www.youtube.com/channel/UCksQZtdox6hEgEIMLV1T-2Q

My Megalovania Remix, But It's Dusttale

Kirian