This is a test TAS of Sonic Mania. Sonic Mania Decomp was used with libTAS 1.4.4 OS used: Ubuntu MATE 20.04 in a QEMU VM on a Manjaro PC. Also, to play the game with libTAS, you need to change the "Elapsed time" number from "0" to "1".
The game runs on Hourglass... Buuut it doesn't register any inputs on the title screen, and it freezes if you load a state.