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Sonic the Hedgehog II - Improvement

Sonic the Hedgehog II Improvement, Vannilla game with bug fixes.
This is a hack of Sonic the Hedgehog 2. It contains fixes for several bugs and inconsistencies found in the original game. Super Sonic can be used more safely(Less accidental transformations) which is activated after pressing a specific button in mid-air, some minor graphical glitches were repaired, game physics are more consistent, and more.

One of the stand out is also the fact that perfect level bonus is now fixed and achievable in all levels.