Sonic the Hedgehog Cheats

Just before the main menu you'll see Sonic's head popping up through the logo. When he shows his head press Up, Down, Left, Right, A and then Start. If done correctly you can choose any stage you want.

In the second act of the Green Hill zone, after the pit of water, there is a spring. Hit the spring and jump so you hit the corner of the wall. if done corect, sonic will get stuck on the wall and if you jump to the right, sonic can go to the nearest place above him (the waterfall leading to the chaos emerald)