Sonic 1 And Sonic Spinball - With 'Sonic And Knuckles Add On'

Knux isn't available in these two games - BUT GET THIS remember the special stages in Sonic 3? Well it seems that Sonic Team added a little secret - when certain codes are programmed into Sonic and Knux when attached to these two games you get a SLEW of special stages!!!! To play the bonus rounds at any time, insert any game into your Sonic & Knuckles cartridge along with said cartridge - Sonic 1 or Sonic Spinball. (***NOTE*** - Only one bonus game is available with Sonic Spinball but its a doozy!!!!!!! ) When the "No Way" message appears, hold A + B + C and press Start. If you do this with the original Sonic game you can play the levels in order and will be given a password to save your progress. And heres one thing - they get harder and harder and harder the further you go - I specifically remember one where you have to do nearly 95% of the board backwards!!!!

You won't find a complete code listing here, since the stages seem to be generated by each code and there are apparently millions of stages.

Stage #10005092-6073-6399
Stage #97,174,7803871-3747-5203