Sonic Frontiers: How to unlock the true final boss & ending

Spoilers, obviously Surprisingly, there’s more to Sonic Frontiers than meets the eye when it comes to its ending. There’s actually a

Final Boss and Ending - Sonic Frontiers Guide - IGN

Sonic Frontiers: How to unlock the true final boss & ending

Sonic Superstars True Final Boss Unlock Guide - Try Hard Guides

Guide] Sonic Frontiers - How To Fight The True Final Boss (No Spoilers) - GamerBraves

Sonic Frontiers Reaches The Final Horizon With Update #3 On September 28th - Games - Sonic Stadium

Sonic Frontiers Secret Ending [Explained]

Leyden's Sonic Frontier review (spoiler free) by LeydenTheWolf777 on DeviantArt

Sonic Frontiers: Final Boss & Secret Final Boss + True Ending

Looks like the Final Horizon content is an option you're presented with right before the Supreme fight. : r/SonicFrontiers