Headscratchers / Sonic Superstars

• Why is there a desert level right next to a water level? Yes, Sonic Rush did it first, but it didn't make sense then either.
• This game reveals that each of the Chaos Emeralds in of themselves have a special unique power granted to each one of them and the characters are all able to utilize these said powers and abilities from the Chaos Emeralds rather easily. Since this game is supposed to be canon and most likely takes place before the events of Sonic Adventure, it really begs the question as to why Sonic and friends never use these powers again when in possession of one of the Chaos Emeralds during the events of Adventure onwards.
  • NM: Simple, they never really had an overt need to use them. They COULD'VE but no situation they were in really required them to be used or were situations they couldn't get out of without them. The only situation that might count is when Sonic was jettisoned into space in Sonic Adventure 2 but the closest things to Chaos Control that the Emerald Powers grant are Slow and Vision, which just slows down time and reveal hidden objects respectively, not warp time and space wholesale.