Artwork Zone - Cosmic Canyon I think Cosmic Canyon (Act 2, though) should be a cave with water drops falling from it. I think it is a great touch! Cutscene: Sonic runs to a rocket, uses it to get down to earth and discovers a cave, so Sonic and Tails go inside to check it out, but they don't know Robotnik found it before them! I made an unused "past" theme where it takes place before Robotnik invaded the world.