PC / Computer - Sonic Mania - Death Egg Robot - The Spriters Resource

Sonic Mania/Unused Graphics - The Cutting Room Floor

PC / Computer - Sonic Mania - Main Menu - The Spriters Resource

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

Custom / Edited - Sonic the Hedgehog Customs - Dr. Eggman (Chibi, Sonic Mania-Style) - The Spriters Resource

PC / Computer - Sonic Mania - Screw Mobile & Diver Eggman - The Spriters Resource

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

Custom / Edited - Sonic the Hedgehog Customs - Egg Drill (Sonic Mania Adventures) - The Spriters Resource

The VG Resource - Dolphman's submissions

Movie Robotnik [Sonic Mania] [Mods]

Sonic The Hedgehog 2 Sprite Sheets - Sega Genesis - Sonic Galaxy.net