★ The notorious Knuckles infinite jump glitch no longer works.
★ The cutscene where Lyric takes control of Metal Sonic has different, more cinematic lighting. The laser Metal Sonic fires at Eggman in this scene was changed from red to yellow.
★ Collision for six levels was altered to prevent characters from going out-of-bounds: Cliff's Excavation Site, Bygone Island, Crater Lake, Tomb of Lyric, Lyric's Weapons Factory (past), and Ocean Purification Plant.
★ The framerate is more stable in some speed sections.
★ The controller diagrams in the pause menu have slightly different coloring, such as a blue ring around the Home button.