I loved most of this game including the 3d levels. Playing sky sanctuary in 3d blew my fucking mind. I was lost after the perfect chaos boss as ive never played any of the games with the featured three levels after him. Still loved it all! but I would LOVE to see actual remakes of the older sonic games in the 3d mode. Mystic cave zone would be amazing! or Sandopolis zone! every level from Sega genesis and Sonic CD would make amazingly nostalgic levels!