Classic green hill zone level and the icon loop sonic runs across/through.

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

I made Green Hill Zone in note blocks for my friend's Minecraft recreation of Sonic The Hedgehog (1991) : r/SonicTheHedgehog

Sonic the Hedgehog 100% - Green Hill Zone, Act 3

File:Sonic the Hedgehog - GEN - Maps - Green Hill Zone - Act 3.png - TheAlmightyGuru

Green Hill Zone, THE Sonic the hedgehog Wiki

Sonic World Doom - Green Hill Zone Act 3 Revamped video - ModDB

Stream Sonic - Green Hill Zone (Bad Future) by Grassinio

Stream Sonic - Green Hill Zone (CLOCKWORKDJ Re-Work){EXCLUSIVE} by CLOCKWORKDJ

Sonic The Hedgehog Pinball Green Hill Zone Pinball Track Play Set, 9 Piece, with Looping Action & Automatic Bumper Exclusive Sonic Sphere Included, for Ages 3+ - Toys 4 U

MOC Ideas 29005 Sonic Hedgehog Green Hill Zone Bricks Toy