Sonic: Little Planet

Taking place about a month or so after the events of Sonic: South Island, Sonic The Hedgehog hasn't had well rest since the battle against Robotnik not too long ago. After realizing that the Little Planet was soon to appear over Never Lake that day, he decides to go look at the spectacle, he needs something to keep his mind off of things. However once he arrives, he saw something he was not expecting to see, a completely robotiscized Little Planet chained to a mountain, this could've only been done by one person, Dr. Robotnik! Now Sonic has to stop the evil Eggman and collect the mystical Time Stones to erase this part of history and save Little Planet, and South Island!