Sonic 2 Recreation Sega Genesis Video Game Cart

2013 Hacking Contest Release - Part One
The third release has undergone a complete overhaul in the past year+. It has the following:

redhotsonic facing the brand new Gem Runway Zone boss. This boss drops red balls that must be spun into to turn yellow. Yellow balls damage the boss. Watch out for spikeballs!
ON THE SURFACE

A new original SEGA screen, modded SSRG screen AND Sonic Retro Splash screen with redhotsonic featured.
A new title screen with the "PRESS START BUTTON" from Sonic 1, that will take you right into the game
A brand new title card, with matching colours and names for characters
Play as Sonic (with/without Tails), Tails, Knuckles (with/without Tails), redhotsonic, OR Sonic & Knuckles!
Sonic has an air-dash ability (press the A button in mid-air to air-dash). He can also "burst" and gain faster speeds (run fast for a long time without slowing down and Sonic will enter burst mode; similar to the Advance series).
Tails retains his S3K moveset, and can instantly descend from flight in the case of wanting to drop to the ground quickly (while flying, press the B button to drop to the ground quickly)
Knuckles plays as he does in S3K, though he doesn't retain his abilities as a sidekick at this moment in time
redhotsonic has no abilities at the moment, though in the future there may be a lava level that sees him invulnerable to the lava...
A cleaned up, bug free Portal Zone is your home. Here you can enter options to change character, switch time-over on or off, or use the sound test. Portal Zone is also responsible for getting you to new levels. At first, only one level is available. After completing one, the next one is available. After you've completed all 4, all portals become available, and the cheat is enabled (press start then A to exit game, and then at title screen, press start whilst holding A, and you're at the level select. Picking a level, hold A to enable debug)
So far, there are 4 new, completed levels; West Bay Zone, Great Gate Zone, Gem Runway Zone and Chaos Angel Zone. Each level contains two main acts, and a boss act. Gem Runway contains the brand new boss. Chaos Angel has 3 main acts but no boss as yet. The emerald hunting aspect has been removed as well, allowing one to run through the zone as they wish
Each boss, old or new, has a new Pinch Mode twist to add to the difficulty, and to freshen things up a bit
Each main level and act will have a "B" portal right at the start. This will take you back to Portal Zone. This means you can go back to Portal at any time.
Dying results in a quick scroll-back to the previous checkpoint, OR the start of the level... no more constant fade outs OR music restarting
2 Player no longer exists. All code has been taken out. This includes all checks, which can help improve the speed of the game (barely)
Special Stages are now back... with a new twist. Play as Sonic and Tails on the Tornado and defeat enemies, and gather rings, en route to the Chaos Emerald.
Unlocking a randomly generated Level Select cheat code upon obtaining all 7 Chaos Emeralds. This will sacrifice all 7 of your emeralds in exchange for this ONE TIME code! (WRITE IT DOWN!) The Level Select will allow you to take a sneak peek at future levels coming in Part Two
If you select sound 3F in Sound Test, the "3D Pinball Space Cadet" theme will start to play.
UNDER THE HOOD

Many Sonic 2 bugs and inferior design choices are gone, and replaced with better coding
S3K-RM Object Manager. Described as "The S3K Object manager with more oomph." The "RM" stand for redhotsonic-Module
S3K Touch Response
S3K Priority Manager
Improved S3K Rings manager
S3K ObjectMove (and Fall) routines
Improved layer deformation code
A huge improvement to the Sonic 2 Clone Driver, and optimized greatly
Uneditable SRAM - Saves your progress after each level or character selection. Loads up your progress when you next play the game. The SRAM in S2R is jumbled and data gets shifted and changed all the time. A lot of the data is dud. If you make an edit yourself to the SRAM, when you next load the game, the SRAM may delete your progress without warning, and you'll have to start again.
Extra security to the game on top of that, so you can't cheat your way through! (RAM changes, code changes, conversion, etc)
Many more miscellaneous optimizations here and there (too many to list)
Underwater mode. When the main character goes underwater, the sound driver changes its properties to make the music and SFX/DAC's sound like you're underwater
Improved screen fading routines
Improved music fading. Music/PSGs/FMs/DACs are now more balanced when fading in and out. Also, can change the speed of the fade in/out to really fast to really slow
SFXs are no longer affected by the fading in/out of music or by the 1-up jingle
NTSC initially, but compatible with PAL. Music will be the same speed in PAL mode as it was in NTSC mode. Timer is still synced with the game in either mode
Main level music will NOT restart after invincibility music or drowning music, instead, it will resume from where it left off

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

Thank you for looking and let me know if you have any questions, also be sure to check out my other listings. I also do requests for custom labels and games so inquire within.