Things You'll Need
Instructions
Play the game and get to Green Hill Zone, Act 3.
Collect the extra life (1-up) at the very bottom of the level by staying on the bottom of the screen and not going up onto the platforms until you find the extra life in a box with Sonic's image on it.
Roll into the box to open it and collect the life.
Go back through the level and collect 100 rings to get another extra life.
Find the loop-de-loop and use the platforms near to get on top of the loop and collect the life on top.
Kill Sonic and go back through and repeat these steps as many times as you want.