“Sonic the Hedgehog 2” and “Sonic 2” redirect here. For the 8-bit version, see Sonic the Hedgehog 2 (8-bit). For the remake, see Sonic the Hedgehog 2 (2013). For similarly-titled media, see Sonic the Hedgehog 2 (disambiguation).
Sonic the Hedgehog 2 (Japanese: ソニック・ザ・ヘッジホッグ 2) is the highly successful sequel of the original Sonic the Hedgehog for the Sega Mega Drive. Put into development not long after the completion of the first game, the title would go on to become one of the most successful video games of all time, selling millions of units and cementing the franchise as a cultural phenomenon in the west.
Introducing Miles “Tails” Prower in the role he was created for to the Mega Drive, the game was released worldwide on November 24th, 1992. Dubbed “Sonic 2sday,” the simultaneous release was an unusual move for the time. The game eventually replaced the original Sonic the Hedgehog as the default pack-in title for the Mega Drive, being bundled with the redesigned Mega Drive II model.
The game is also the first in the “Death Egg Saga”, a storyline that would continue in the sequels Sonic the Hedgehog 3, Sonic & Knuckles, and Sonic the Hedgehog 4.
Some time after stopping Dr. Eggman once again, Sonic the Hedgehog grows restless, deciding to do what he does best – travel the world, looking for adventure. Climbing into his trusty biplane, the red-and-white Tornado, the blue hedgehog begins flying the skies, looking for places unknown. On nothing more than an impulse, Sonic decides to land on an unassuming island, called West Side Island. Deciding to kick back and explore the isle, Sonic is completely oblivious to the legend connected to the island, and the similarities it has in relation to his adventures on South Island. According to legend, there was once a great and prosperous people who lived on its shores, who achieved their greatness through the use of mysterious, powerful stones. Their peace could have been everlasting if not for a select few who desired to use the stones for their own selfish gains, causing the gods to take away the stones and hide them away on the island…
A few days after landing, Sonic realized that he was being followed by someone. Looking behind him, Sonic spotted a young fox, who immediately hid from the blue hedgehog when he looked his way. Not thinking much of it, Sonic ran off, the fox once again following. The young fox’s given name, Miles Prower, was overshadowed by his nickname, “Tails,” derived from the fact that he possessed not one but two tails behind him. Often being ridiculed by his peers, “Tails” outlook on life changed immediately once he spotted Sonic running around his home, deciding that he had to follow and emulate his new hero, wanting to be just as cool and confident. No matter where Sonic would go, Miles would try and follow, Sonic eventually accepting the near-constant trailing of the young fox.
Not long after, during a brief moment when “Tails” was exploring the beaches of West Side on his own, he came across the Tornado, glittering in the sun. Spotting it in the distance, he became extremely excited, running as fast as he could towards it. Engrossed in its design, he wondered who the plane belonged to. He didn’t have to wait too long when, out of the corner of his eye, the fox spotted the distinct image of Sonic, taking a nap under one of the wings. This newfound knowledge was not given much time to process in “Tails” mind when suddenly a loud explosion echoed through the air, shocking Sonic awake.
Looking beyond the Emerald Hill Zone, a large pillar of fire could be seen, accompanied by a new, yet familiar, army of mechanical robots. It only took a second for Sonic to guess who had caused the explosion, cursing Eggman’s name and running into the thick of it. Without hesitation, Miles Prower followed behind, knowing that he had to be right at Sonic’s side.
His laugh echoing in the wind, Eggman couldn’t help but gloat over his newest plan, being grateful for having the foresight to follow Sonic to West Side Island. Learning of the legend of the island, Eggman came to the realization that the legendary stones talked of could only be the Chaos Emeralds, this island being the true resting place of not only the six from before, but of a seventh as well. Once again wanting the emeralds for himself, Eggman plans on using them to power his latest creation, the Death Egg, a flying fortress orbiting the planet with the potential to be his greatest weapon. With the desire to rule the world fueling the mad doctor, he prepares to once again engage with his greatest enemy, the one force that could possibly spoil his plans.
“The stage is set. Now it’s time for you to bring the curtain to a close on this adventure once and for all!”
Building upon the engine from the first game, Sonic the Hedgehog 2 kept to the same basic formula as the first game: to overcome a series of obstacles and enemies and reach the end of each “Act,” all under the span of ten minutes. Many of the elements that made the first Sonic the Hedgehog unique return, such as the loop-de-loops and curved slopes, while introducing new hazards and level elements like the corkscrews in Emerald Hill Zone and the slot machines in Casino Night Zone, placed inside areas taking full advantage of the pinball side of the physics. With the exception of Metropolis Zone (which has three Acts) and the final three Zones of the game (which are one Act each), each Zone only possesses two Acts, although each Act in this game is larger than the Acts found in Sonic the Hedgehog.
The main form of attack for Sonic is the same as the first game, the ever trusty Spin Attack that Sonic curls into each time he jumps. Able to hit enemies from any angle as long as spikes or some other projectile is not in the way, he can also curl into this spin on the ground in the same way, by the player pressing on the control pad as he runs along the terrain. However, the game also introduces a new way to gather up speed in this form without having to build it up. The Spin Dash, which has since become a staple of the series, allows Sonic to rev up in a static location before he fires off, either destroying enemies in his wake or giving him the momentum to slide up steep slopes and reach higher areas of each level. By pressing and holding while tapping the , or button, letting go of allows Sonic to zoom ahead, Dr. Eggman’s forces being no match for the blue hedgehog.
As both the title screen and the story suggest, a new character is introduced in the game. Miles “Tails” Prower, by default, follows Sonic around automatically, emulating each move Sonic does. Sometimes helpful and sometimes baffling, he is also given an infinite number of lives, so if the player is able to just miss a hazard with Sonic but “Tails” is less than fortunate, he will return to the screen, using his namesake to fly from the top of the screen down to where Sonic is standing. He also uses this method to catch up to Sonic if the player is fast enough to lose the two-tailed fox. If a second controller is plugged in, another player can control “Tails,” making Sonic the Hedgehog 2 the first game with “1.5 player” play. Although given the flying animation, the other player can not activate “Tails” flying ability, nor can they jump on the various monitors that litter each zone. The infinite lives count, however, remains. In the options menu to the game, having “Tails” follow Sonic can be turned on or off, the game also giving the player the option to play as “Tails” by himself. Though he can now break monitors when alone, he still can not fly, and must follow the same rules of extra lives as Sonic does in the main game.
Special Stages and Chaos Emeralds return in this game, although both how you access them and how you play through them are completely different from the first Sonic the Hedgehog. The only way to activate them is by hitting the checkpoints in this game, which are Star Posts instead of Lamp Posts. If the player possesses fifty Rings while touching the post, a ring of stars will appear for a short time, jumping into them transporting Sonic and “Tails” into the Special Stage. A three-dimensional-esque half pipe that can feel like a roller coaster, the object is to collect the number of Rings the stage announces at the beginning. Each stage is broken up into three parts, and if the player successfully collects Rings for all three tries, they will be awarded with one of the Chaos Emeralds. While the last game only had six, Sonic 2 raises the total by one. And while the Chaos Emeralds are not completely necessary to beat the game in a simple run through, they are still needed to view the true ending of the game. As an added incentive, the team behind the game decided to give the players a bonus for collecting all seven Chaos Emeralds. After finding the seventh, and then collecting yet another fifty Rings in a Zone and jumping up, Sonic will transform into Super Sonic, a golden-hued, buffed out version of the original who is both invincible and super fast. The only downside, though, is the transformation is temporary, and drains Sonic’s Ring count, returning to his original true blue self once all the Rings are gone.
Two-player VS mode
Being the second in the series, the team behind the game decided they would try their hand at a competitive, two-player mode. Taking the Emerald Hill Zone, Casino Night Zone, Mystic Cave Zone from the main game, throwing in the Special Stages, and giving the main levels a unique soundtrack for the mode, each player controls one of the main characters to the game as they traverse a split-screen form of these classic levels. With Sonic on top and “Tails” on the bottom, they are graded on five criteria for each act: Score, Time, Ring count at the end of the Act, Total Ring count (including those lost by being hit), and number of Item Boxes popped open. The player that wins the most out of those five takes the round. Though the standard item boxes from the game are present, there are two that are unique to this mode. The first is a teleportation box, which will switch Sonic and “Tails”‘ position on the map. The second is an Eggman monitor, that will cause whoever pops it open to take a hit. As every monitor on-screen is only static, it is always random as to what will be found inside each monitor. Also of note is that the extra lives in the item boxes are not determined by which character opens it, but by which character’s face shows up, so it is entirely possible for the player being Sonic to give “Tails” an extra life, and vice-versa.
As each Zone only contains two Acts, if a tie occurs it will be decided by the competitors in a Special Stage. As these play different from the rest of the game, the only criteria that is graded is the Ring count at the end of each segment, the stage still split up into three “rounds.” The best two out of three takes the Special Stage, and subsequently the Zone. Even if there are no ties during a run through the two player mode, the Special Stage is still one of the four levels to be chosen during the mode, the same rules applying to it as the other Special Stages. The player who wins the most out of everything is, naturally, the winner.
For those who want their two-player encounters to be even crazier, an option is available to change every monitor in the game to a Teleporter monitor.
Super Ring Awards 10 Rings. Shield Gives the player a shield that protects them from damage for one hit. Power Sneakers Increases the player’s speed for a short time. Invincible Makes the player invincible for a short time. One-Up Awards an extra life. Teleporter Makes both Sonic and Tails change places in the Act. Appears only in the two-player VS mode. Eggman Mark Causes damage to the player when broken, taking away Shields, Rings and lives. Appears only in the two-player VS mode. ? Contains a random item that is revealed when broken. Appears only in the two-player VS mode, replacing all monitors.
Music and sound
Below is a listing of the songs available to play through the game’s sound test, accessible through the Options menu.
Number of copies sold Reference Platform Region Notes 6,000,000 Sonic the Hedgehog Retrospective, Part 3 (Original video (not viewable in the US), alternative upload) Sega Mega Drive N/A These sales data numbers make Sonic the Hedgehog 2 (16-bit) the second best-selling game for the Sega Mega Drive / Sega Genesis console overall, second only to the original Sonic the Hedgehog (16-bit); as well as the the best-selling game for the Sega Mega Drive / Sega Genesis when discounting sales of games bundled with hardware. 400,000 SegaForce UK  ” Japan
REV02 (Sonic Classics)
Note: This will only apply to the game specifically.
REV02 released as a part of Sonic Classics contains all of the changes from REV01 and Some more.
Main article: Sonic the Hedgehog 2 (16-bit)/Comparisons
Rereleases and ports
Main article: sega:Sonic the Hedgehog 2 (Mega Drive)/Production credits
Main article: Sonic the Hedgehog 2 (16-bit)/Manuals
Main article: sega:Sonic the Hedgehog 2 (Mega Drive)/Magazine articles
Main article: Sonic the Hedgehog 2 (16-bit)/Promotional material
92 Sonic Retro Average Based on 5 reviews Publication Score Source Famitsu (JP) 78 Game Informer (US) 95  MegaTech (UK) 95  Sega Pro (UK) 94  Svenska Hemdatornytt (SE) 100 
ROM dump status
System Hash Size Build Date Source Comments ✔ 1MB 1992-09-26 Cartridge v00 ✔ 1MB 1992-09-29 Cartridge v01 ✔ 1MB 1991-04 Cartridge Nick Arcade prototype (519 kB) (info) Page ✔ 1MB 1991-04 Cartridge Simon Wai prototype (625 kB) (info) Page ✔ 1MB 1992-08-21 EPROMs Alpha (629 kB) (info) Page ✔ 1MB 1992-09-14 EPROMs Pre-beta (695 kB) (info) Page ? 1MB 1991-04 Cartridge CENSOR prototype (701 kB) (info) Page ✔ 1MB 1992-09-18 CD-R disc Beta 4 (713 kB) (info) Page ✔ 1MB 1992-09-21 CD-R disc Beta 5 (727 kB) (info) Page ✔ 1MB 1992-09-22 CD-R disc Beta 6 (first build) (730 kB) (info) Page ✔ 1MB 1992-09-22 CD-R disc Beta 6 (second build) (730 kB) (info) Page ✔ 1MB 1992-09-24 CD-R disc Beta 7 (730 kB) (info) Page ✔ 1MB 1992-09-24 CD-R disc Beta 8 (732 kB) (info) Page ✘ 1MB 1992-09 Sonic Compilation Hack; extracted from Sonic Compilation. Assumed to be v02.
- Complete list of Sonic 2 disassemblies
- View the disassembly on GitHub
- Sonic Community Hacking Guide/Sonic 2
- Nemesis’ Sonic 2 Hacking Guide
- Nemesis’ Sonic 2 Savestate Hacking Guide
- Sonic the Hedgehog 2: Mega Drive Official Guide Book – Contains a short comic based on the story to Sonic the Hedgehog 2, by Sango Morimoto, one of the artists for the Sonic the Hedgehog manga.
- Sega of Japan Virtual Console page (Japanese)
- Nintendo catalogue pages: US, UK, AU
- Sonic the Hedgehog 2 on Steam
- Sonic the Hedgehog 2 on The Green Hill Zone
- Sonic the Hedgehog 2 on Zone: 0
Sonic the Hedgehog 2 (16-bit)
Main page (KiS2|2013|3D|Ages)Comparisons (KiS2) (2013) Maps (KiS2) (2013) AchievementsCredits
Manuals Promotional material Magazine articles Video coverage Reception Merchandise
Development Hidden content (KiS2) (2013)Bugs (KiS2) (2013)Region codingHacking guideBootlegs
Sonic the Hedgehog games for the following systems 1991 Sonic the Hedgehog | Sonic Eraser 1992 Sonic the Hedgehog 2 1993 Sonic the Hedgehog CD | Dr. Robotnik’s Mean Bean Machine | Sonic Spinball 1994 Sonic the Hedgehog 3 | Sonic & Knuckles 1995 Chaotix | Sonic Classics 1996 Sonic 3D: Flickies’ Island 2006 Sonic the Hedgehog | Dr. Robotnik’s Mean Bean Machine 2007 Sonic the Hedgehog 2 | Sonic the Hedgehog 3 | Sonic Spinball | Sonic 3D: Flickies’ Island 2008 Sonic the Hedgehog (8-bit) | Sonic the Hedgehog 2 (8-bit) 2009 Sonic Chaos | Sonic & Knuckles 2010 Sonic the Hedgehog 4 Episode I filler 2010 Sonic the Hedgehog | Sonic Spinball | Dr. Robotnik’s Mean Bean Machine | Sonic 3D: Flickies’ Island | Sonic & Sega All-Stars Racing 2011 Sonic the Hedgehog 2 | Sonic the Hedgehog 3 & Knuckles | Sonic Adventure | Sonic Generations 2012 Sonic the Hedgehog 4 Episode I | Sonic the Hedgehog CD | Sonic the Hedgehog 4 Episode II | Sonic Adventure 2 2013 Sonic & All-Stars Racing Transformed 2015 Sonic Lost World 2017 Sonic Mania | Sonic Forces 2019 Team Sonic Racing 2022 Sonic Origins | Sonic Frontiers 2023 Sonic Colours: Ultimate | The Murder of Sonic the Hedgehog | Sonic Superstars 2007 Sonic the Hedgehog (iPod) 2009 Sonic the Hedgehog (iPhone) 2010 Sonic the Hedgehog 2 | Sonic Spinball | Sonic at the Olympic Winter Games | Sonic the Hedgehog 4 Episode I | Sonic Comics 2011 Sonic 20th Anniversary | Sonic the Sketchhog | Sonic & Sega All-Stars Racing | Sonic the Hedgehog CD 2012 Sonic the Hedgehog 4 Episode II | Sonic the Hedgehog Skins | Sonic Jump 2013 Sonic Dash | Sonic the Hedgehog | Sonic the Hedgehog 2 | Sonic & All-Stars Racing Transformed 2014 Sonic Jump Fever 2015 Sonic Runners | Sonic Dash 2: Sonic Boom 2017 Sonic Forces: Speed Battle | Sonic Runners Adventure 2019 Sonic Racing 2020 Sonic at the Olympic Games 2022 Sonic Speed Simulator filler 2011 Sonic the Hedgehog | Sonic Advance | Sonic the Hedgehog CD 2012 Sonic the Hedgehog 4 Episode I | Sonic the Hedgehog 4 Episode II | Sonic Jump 2013 Sonic the Hedgehog | Happy Sonic! Live Wallpaper | Sonic & Sega All-Stars Racing | Sonic the Hedgehog 2 | Sonic Dash | Sonic & All-Stars Racing Transformed 2014 Sonic Jump Fever 2015 Sonic Runners | Sonic Dash 2: Sonic Boom 2017 Sonic Runners Adventure | Sonic Forces: Speed Battle 2020 Sonic at the Olympic Games 2022 Sonic Speed Simulator