Hey guys i just noticed/realized right now but actually the alternative soundtracks was made for remplacing some of the tracks because they doesn't fit/aren't good enough the best example are the original ones (the title theme and the main menu JP) those was made to remplacing the old ones cause they didn't fit or aren't good enough. Well for the new ones (Relic Ruins present US, Collision Chaos good future JP and past US, Tidal Tempest past JP, Quartz Quadrant bad future US, Stardust Speedway good future US and Metallic Madness bad future JP) will just being there if you prefer the original or the alternative (depending on the version you can choose to have the alternative or original ones) but i was telling you that because some of the songs will be rempled by new ones like the VS Metal Sonic JP or Special Stage JP