 This game contains the first appearance of Super Sonic. When Sonic  has all seven Chaos Emeralds, collects 50 rings and leaps into the  air, he transforms into Super Sonic. As Super Sonic, he is yellow,  faster, able to jump higher, and invulnerable to all attacks except  being squashed or falling off the screen. However, the  transformation also depletes your ring total, and when you get down  to 0 rings you transform back into regular Sonic.