Proto:Sonic the Hedgehog 2 (Genesis)/Simon Wai Prototype/Green Hill Zone - The Cutting Room Floor

Knuckles in Sonic 2 Green Hill Zone by Hivebrain V0.2 (S2 Hack) : Free Download, Borrow, and Streaming : Internet Archive

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

Watch Act 2 of Sonic Mania's Green Hill Zone in action - Polygon

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

Worms Map Database - Maps - Green Hill Zone Act 2

Green Hill Remake & Marble Zone Remake

Hacks - Sonic 2 Early Prototype Green Hill Zone Fix

Sonic the Hedgehog Green Hill Zone Action Figure Playset, includes 2.5 Inch Sonic Action Figure

Sonic Mania reveals Green Hill Zone Act 2, new bosses - Gematsu

LEGO Sonic the Hedgehog Sonic's Green Hill Zone Loop Challenge 76994 Building Toy Set, Sonic Adventure Toy with 9 Sonic and Friends Characters, Fun Gift for 8 Year Old Gamers and Young