Story: "Flicky Island under Siege!

Sonic and his friends are off to visit the mysterious Flicky Island. According to legend, the island contains precious gems – among them the Chaos Emeralds. Sonic must find the Flickies, mysterious little birds who hold the key to finding the gems. Flickies are rarely seen, and it is said that their existence is tied closely to the location of the Chaos Emeralds.

Meanwhile, Dr. Robotnik has hatched a new scheme. His target this time is Flicky Island. He has detected the presence of the Chaos Emeralds on the island. Upon arriving there, Robotnik immediately starts setting up intruder defenses, and begins building the robots he loves so much. But Robotnik needs to find the Flickies to place inside his machines. Suddenly, in the distance he sees a bright shining Dimension Ring appear. A flock of Flickies fly out of the ring, perch on a tree branch, pick up some food, and then disappear into the Dimension Ring. ‘So they live in another dimension, do they? Hah! I’ve found the secret of the Flickies!’

The Flickies travel freely between dimensions using the Dimension Rings! Without wasting time, Robotnik develops a new device: the Dimension Ring Generator. He captures Flickies from the Flicky dimension using his new device, and begins turning them into robots. Later on, Sonic and his friends arrive at Flicky Island, and find the place in pandemonium.

Sonic sees the crazed doctor busily placing the Flickies into his robot shells. 'Robotnik!' Sonic yells.

'Sonic? Again? Well, no matter. With the robots I’ve created using the Flickies, you’ll never be able to stop me! At last I will be free to find all the Chaos Emeralds and rule the world!' Sonic realized that he must save the Flickies by freeing them from their robotic prisons and sending them back into the Flicky dimension. More importantly, Robotnik must not be allowed to find the Chaos Emeralds first. Time to go, Sonic!"


Cheat Mode
At the title screen hold the C button and press the start button. Once you get to the main part of the game pause it, and then press the following:

Z = Gain all the Chaos Emeralds
X = Gain one life
Y = Gain one medal
A = Skip an Act
B = Skip a stage
C = Skip to the last boss of the stage

Hidden Menu and Increase Framerate (PC version only)
During the game hold down the M key and then press the Esc button. This will take you to a hidden menu where you can have all sorts of fun.

You can also enable 'Motion Smoothing' which makes the game play significantly smoother. You might need to go to 'Return to Title' on the same menu for this to work correctly though.