While at the in game pause menu, press the following with the d-pad(the directional pad):UP,UP,DOWN,DOWN,LEFT,RIGHT,UP. A chaos emerald sound will confirm correct code entry and unlock all Super Emeralds for the Hyper Sonic cheat code.While at the in game pause menu, press the following with the d-pad(the directional pad):UP,DOWN,UP,DOWN,LEFT,RIGHT,DOWN. An extra life sound will confirm correct code entry and unlock the ability to transform into Hyper Sonic when you collect 100 rings.