AngelIslandZone
At the end of a long adventure, Sonic goes to the shores of Never Lake for the once-a-year appearance of Little Planet - a mysterious world where it is said that the past, present, and future collide through the power of the Time Stones hidden within it.
Doctor Robotnik, Sonic's nemesis, has chained the planet down and cast it in a metallic shell, hoping to get the Time Stones all to himself, and with that power he'll be able to twist time itself!
Fight through the past, recover the future, and defeat the evil Metal Sonic to save the future from Doctor Eggman's nefarious schemes!