With the recent reveal that Sonic Frontiers will indeed feature everyone's favorite level Green Hill Zone in a Sonic game once again, a lot of people are wondering why Sonic games keep reusing Green Hill. But it got me wondering: how many times have Sonic games reused Green Hill? I decided to survey all the mainline Sonic games (both console and handheld, so this'll include all the Master System/Game Gear and Dimps-developed titles) and determine how many times it's shown up. Note that this excludes spin-offs (racing games like Sonic Drift, mobile games like Sonic Dash, etc.) and crossovers (Smash, Mario & Sonic, etc.) since those don't fall under the umbrella I'm looking into. The survey I've done divides stage appearances into three categories: Green Hill itself: self-explanatory. The original Green Hill Zone that first appeared in Sonic 1. Green Hill in all but the name: self-explanatory. Stages that are quite clearly Green Hill but not called Green Hill. Green Hill-like/inspired: stages that aren't called Green Hill and feature unique mechanics/additions, but otherwise clearly have some Green Hill lineage. So without further ado, let's get started! Green Hill itself Spoiler Sonic the Hedgehog (1991) The one that started this whole mess. Appears in both the 16-bit and 8-bit versions. Sonic the Hedgehog 2 (8-bit version, 1992) Yes, there's an "s" after "Hill". No, I don't consider that enough to bump it down to "in all but the name". This is Green Hill again. Sonic Blast (1996) Everyone's favorite 8-bit Sonic game, in all its "we tried to rip off Donkey Kong Country but the specs made it too hard" glory. It's also got Green Hill. Sonic Adventure 2 (2001) Your grand reward for getting all 180 emblems (which no one ever did unless they had GameShark, people have lives) was a 3D recreation of Green Hill Zone Act 1 from Sonic 1. While it's not the first time Green Hill has reappeared in a mainline Sonic game, it's the first time it's reappeared in a way that's clearly meant to evoke nostalgia of the first game. Sonic Generations (2011) Begins with, you fuckin' guessed it, Green Hill. Notable for being the only stage in the game that appears in both the console/PC and 3DS versions (and the 3DS version's Act 1 is, like Sonic Adventure 2, a full recreation of Sonic 1's Green Hill Zone Act 1). Sonic Mania (2017) You're gonna play through Green Hill again and you're gonna fuckin' like it, buddy. Sonic Forces (2017) "There's sand everywhere! Green Hill's looking a lot more like Sand Hill right now!" Sonic Frontiers (2022) You know what? Fuck you. More Green Hill. By my count, a total of nine (counting Sonic 1 8-bit as a separate game) mainline Sonic games feature Green Hill itself. So what about Green Hill in all but the name? Green Hill in all but the name Spoiler Emerald Hill, Sonic the Hedgehog 2 (1992) This was the stage that made me decide to have a separate category for Green Hill in all but the name, because it's so obviously Green Hill but it isn't called Green Hill and I knew people would give me shit if I said it was Green Hill and would give me shit if I said it wasn't Green Hill. So I made this category. Anyway, Green Hill, but now called "Emerald". Turquoise Hill, Sonic Chaos (1993) what if I told you this is just Green Hill Green Grove, Sonic 3D Blast (1996) Pretty straightforward, basically Green Hill in every possible way except its name. Neo South Island, Sonic Pocket Adventure (1999) Completely different name, but also very obviously Green Hill (though it throws in some elements of Emerald Hill and PalmTree Panic). So it goes here. Leaf Forest, Sonic Advance 2 (2002) Apparently this is a forest instead of a hill, but I ain't seeing anything that says this isn't Green Hill. So it goes here. Sunset Hill, Sonic Advance 3 (2004) Like Emerald Hill, this would be up there in the "Green Hill itself" category if they just had the balls to call it Green Hill Splash Hill, Sonic the Hedgehog 4: Episode I (2010) Ditto. Windy Hill, Sonic Lost World (2013) Ditto ditto. With that, a total of seven games feature Green Hill but don't have the balls to admit it's Green Hill. And now for the stages that feature Green Hill-inspired levels but are distinct enough that they're not Green Hill in all but the name. Green Hill-inspired Spoiler PalmTree Panic, Sonic CD (1993) It's pretty well known at this point that all Sonic CD's levels are based on Sonic 1's, but my personal belief is that they do a good enough job separating them from their big brothers to the point where the stages can be judged on their own merits. I hesitated between putting this in "Green Hill in all but the name" and here, but I think PalmTree Panic's additions of 3D ramps, log tunnels, time travel shenanigans, and whatnot mean it's distinct enough to slide into "inspired" territory. Great Turquoise, Sonic Triple Trouble (1994) Bouncy palm trees and a heavily modified aesthetic allow this to join the "inspired" crowd. Mushroom Hill, Sonic & Knuckles (1994) Mushroom Hill is mostly distinct, but there are enough similarities in its aesthetic and design that I'd say it'd be inaccurate to say there's not at least some Green Hill influence. So I'm including it here. Neo Green Hill, Sonic Advance (2001) This was a tough one - I accept that "Neo" is pretty flimsy justification for separating it from the "Green Hill itself" crowd, but I don't think it's so similar to the point that it's just straight-up Green Hill. There's enough changes to the aesthetic and mechanics that I don't think it's accurate to group it in the top two categories, so I think it belongs here. Seaside Hill, Sonic Heroes (2003) Aesthetically, Seaside Hill is an obvious riff on Green Hill, but it establishes itself as a unique stage by blending the basic look with ancient ruins and featuring mostly original mechanics and design. Seaside Hill, Sonic Generations (2011) Seaside Hill also returns in Sonic Generations, with an increased focus on the ancient ruins elements. So that is six games featuring a Green Hill-inspired level. Our final count is: Nine games feature Green Hill itself. Seven games feature a stage that is obviously Green Hill but isn't called Green Hill. Six games (including one game repeated from the first category) feature a stage that's clearly a riff on Green Hill but is distinct enough to the point that calling it Green Hill isn't accurate. Ultimately, Green Hill has appeared nine times counting only levels called "Green Hill", sixteen times counting levels that are Green Hill but aren't called Green Hill, and twenty-two times counting all levels that are Green Hill-inspired but distinct enough to not be a Green Hill ripoff. We all know Green Hill has appeared a LOT, but it, or a stage inspired by it, has probably shown up a lot more than you'd think! It's not a recent phenomenon that Sega decided to milk the fuck out of it, they've been doing it for ages now. Of course, this list is subjective. There are probably stages you wouldn't call Green Hill-like on here, or stages you would but I missed. I was just interested in determining how many times it's actually shown up in some form and thought it'd be good to have posted for the record. Cheers!