The Dreamcast Junkyard: A Quick Look At Sonic Adventure 2's Green Hill Zone

Green Hill Zone Act 2 (Mania) Sheet music for Piano (Solo)

Sonic Mania - Green Hill Zone Act 2 + Special Stage + Boss Fight

Sonic Mania Gameplay: Green Hill Zone Act 2 - PAX East - IGN

Steam Workshop::Green Hill Zone: Act 2 [Mountains]

Steam Workshop::Green Hill Zone: Act 2 [Caverns]

New Sonic Mania Screenshot Showcases Green Hill Zone Act 2 – SoaH City

Stream Sonic Mania - Green Hill Zone Act 2 (Genesis vs. Pokemon BW Mix) by Dobriy_Den2000 (Requests)

The Spriters Resource - Full Sheet View - Sonic the Hedgehog (Prototype) - Green Hill Zone Act. 2 (Dark)

PC / Computer - Sonic Generations - Green Hill Zone Act 2 - The Models Resource

Emerald Hill Zone, Sonic Wiki Zone