The Geometry Dash 12 Demons of Christmas year #3 ramps up the difficulty with a classic insane demon that I've always waned to do. UltraSonic is the sequel to Supersonic, and the 2nd in the sonic series. Since I've already completed Supersonic and HyperSonic, it was only natural that I do UltraSonic soon! Maybe someday I'll be good enough to do SubSonic.

UltraSonic is an insane demon megacollab by Gboy, xcy7, ZenthicAlpha,
Glittershroom, Viprin, Evasium, Jeyzor, and Sumsar.

Christmas Demon face made by JigglypuffGD ►   / jigglypuffgd  

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