In case this doesn't work in Scratch, try Turbowarp! https://turbowarp.org/1222399323 "You see that little thing your hand is on? yeah, thats a mouse, you will need it in order to fully enjoy this project." This scene creator is not really different from others. Click each sprite for different costumes (and dragging sprites still works.) Thanks to @Sonic_1993 (he's the one that teached me how to do some stuff in here, like the title screen, check out his work, blud rocks!)
Release notes: RELEASE! (September 28th, 2025) - The game released, with a cool title screen, and sprites for Sonic (Sonic 1, 2 and 3), Tails (Sonic 2 and 3), Knuckles, Amy (Sonic Origins and Extra Slot), Robotnik (Sonic 1 and CD), Fang/Nack, Bean, Trip, Mighty, Ray, Fleetway Super Sonic, Sally Acorn, Espio, Charmy, Vector, Metal Sonic, Metal Knuckles, Tails Doll, Sonia and Manic.