Story: "Dr. Ivo Robotnik, the mad scientist, is snatching innocent animals and turning them into evil robots! Only one tough dude can put an end to the demented scientist's fiendish scheme. It's Sonic, the real cool hedgehog with the spiked haircut and power sneakers that give him super speed.

Help Sonic fight hordes of metal maniacs with the Super Sonic Spin Attack. Speed down rolling hills and leap over dangerous booby traps. Then splash through the chilling waters in an underground cavern. And if you're lucky, you can warp to the Special Stage where you jump from springs and bounce off bumpers as if you're in a real pinball machine! Your greatest challenge lurks in a flying blimp where you come face to face with Dr. Robotnik himself!

Spin 'til you're dizzy, save the animals and become the super hero. Be Sonic! Be atomic!"


Version 1

007-01A-3BE:	Unlimited lives
020-54A-E6E:	Rings worth 2 points However, the ring counter will return to zero after 100 points, but an extra life will be awarded.
030-54A-E6E:	Rings worth 3 points
040-54A-E6E:	Rings worth 4 points
050-54A-E6E:	Rings worth 5 points
060-54A-E6E:	Rings worth 6 points
070-54A-E6E:	Rings worth 7 points
080-54A-E6E:	Rings worth 8 points
3A0-21C-2A2:	Never lose rings
003-F8C-3B7:	Timer disabled
013-7DE-E66:	Start with 1 life
053-7DE-E66:	Start with 5 lives
093-7DE-E66:	Start with 9 lives

Version 2

003-8CE-5D4 013-88E-91A	Start on Green Hill Zone, Act 2
003-8CE-5D4 023-88E-91A	Start on Green Hill Zone, Act 3
003-8CE-5D4 033-88E-91A	Start on Bridge Zone, Act 1
003-8CE-5D4 043-88E-91A	Start on Bridge Zone, Act 2
003-8CE-5D4 053-88E-91A	Start on Bridge Zone, Act 3
003-8CE-5D4 063-88E-91A	Start on Jungle Zone, Act 1
070-54A-E6E:	Rings worth 7 points
003-8CE-5D4 073-88E-91A	Start on Jungle Zone, Act 2
003-8CE-5D4 083-88E-91A	Start on Jungle Zone, Act 3
003-8CE-5D4 093-88E-91A	Start on Labyrinth Zone, Act 1
003-8CE-5D4 0A3-88E-91A	Start on Labyrinth Zone, Act 2
003-8CE-5D4 0B3-88E-91A	Start on Labyrinth Zone, Act 3
003-8CE-5D4 0C3-88E-91A	Start on Scrap Brain Zone, Act 1
003-8CE-5D4 0D3-88E-91A	Start on Scrap Brain Zone, Act 2
003-8CE-5D4 0E3-88E-91A	Start on Scrap Brain Zone, Act 3
003-8CE-5D4 0F3-88E-91A	Start on Sky Base Zone, Act 1
2A2-86A-6E2:	Breathe underwater