Sonic the Hedgehog 2 Long Version Sega Genesis Reproduction Video Game Cart

Sonic 2 Long Version (which is released alongside Sonic 2 & Knuckles Long Version) is a more complete version of Sonic 2, which makes it somewhat similar to Sonic 2 Delta. This hack features four levels originally scrapped during Sonic 2's development. No levels have been changed, only added. This hack was written in hex, without the aid of any special hacking programs, because the creator uses a Mac, and no hacking tools had been released on that platform at the time of development.

Levels
In order according to the level select menu, Sonic 2 Long Version's levels include:

Emerald Hill Zone
Chemical Plant Zone
Aquatic Ruin Zone
Casino Night Zone
Hill Top Zone
Wood Zone: The graphics are similar to what is seen in the Simon Wai prototype. It uses different background music (2 player Emerald Hill Zone). The boss is the same as Aquatic Ruin Zone's boss, but the stone columns are replaced with wooden totem poles and an extra pit has been added.
Mystic Cave Zone
Dust Hill Zone: Uses graphics similar to the mockup screenshot of Sand Shower Zone, which was at the time thought to be called "Dust Hill Zone". This version switches between both desert and winter settings. It's probably meant to be a fusion of this zone and the Winter level. The BGM used is from 2 player Mystic Cave Zone. The Emerald Hill Zone boss is reused for this level with no alterations, other than the animal ribs on the ground which act as spikes.
Oil Ocean Zone
Genocide City Zone: The graphics used are partially taken and modified from a the first stage of a SNES game called Spirou. The level has a night time setting with water on the bottom to replicate an underground city sewer. The BGM is different than what was on the Nick Arcade prototype (it is in fact the 2 player Casino Night Zone). This level is actually only one act repeated twice, with a boss at the end of Act 2. The Chemical Plant Zone boss is reused with no alterations made to him.
Hidden Palace Zone: The graphics and layout are the same as those found in the Nick Arcade prototype. The BGM used is the same that was used in the Final version of Sonic 2. The Mystic Cave Zone boss is reused with no alterations made.
Metropolis Zone
Sky Chase Zone
Wing Fortress Zone
Death Egg Zone: Act 1 and Act 2 use the exact level layout and graphics from Chemical Plant Zone, but with a space background. Act 3 is Act 1 of the released version.
Known Bugs
The graphics may glitch for Hidden Palace Zone and Genocide City Zone, though the levels are still playable and beatable.
If the player runs to the door but does not go through, and then runs left in Death Egg Zone Act 3, Sonic's sprite will glitch for a moment and the player will lose 4 lives. This is for unknown reasons, but the player can acquire 252-255 lives in the process.

Game has been tested on an original Sega Genesis model 1 and works flawlessly.

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