RubyMeltdown
Ruby Illusions from Sonic Mania plays during facility meltdown.When you take the apparatus with Facility meltdown installed, Ruby Illusions (Sonic Mania Final Boss Music) will play.
Facility Meltdown Required. It should be packaged with it if you download using r2modman.
Credits for music go to Tee Lopes, The Sonic Team, and Sonic Mania.