So, here I make an attempt to enter the forums with my Sonic 1 hack: Sonic the Hedgehog Edited.
Here's a list of what is in it as far as I remember:
That's all I can remember for now.
And now, the screenshots.
New Sega screen:
New title cards + GHZ (dang, off by 1 frame & too lazy to retake):
Double jump + GHZ:
End of level + GHZ:
New SLZ1 layout + Double Jump:
Controls: Mainly the same as Sonic 1, plus the following:
Download link: -rom link removed-