PC / Computer - Sonic Mania - Phantom Heavies - The Spriters Resource

Sonic Mania Conversion Sprites by DevyOfficial on DeviantArt

Modified Sonic Sprites

Sonic & Knuckles Sprite Sheets – Sega Genesis - Sonic Galaxy.net

PC / Computer - Sonic Mania - Creator Credits & Try Again Screens - The Spriters Resource

Custom / Edited - Sonic the Hedgehog Customs - Classic Capsule (Sonic Mania-Style) - The Spriters Resource

Sonic Mania - Special Stages, Bonus Stages, & Time Attack Shown Off, Page 16

PC / Computer - Sonic Mania - Heavy Gunner - The Spriters Resource

PC / Computer - Sonic Mania - Knuckles the Echidna - The Models Resource

PC / Computer - Sonic Mania - Laundro-Mobile - The Spriters Resource

The VG Resource - Dolphman's submissions