Board Thread:General Discussion/@comment-679780-20160723045230/@comment-679780-20160726002245

Well, not many know this, but there is actually 2 ways to get the "good ending" in Sonic CD:
 * 1) The most challenging method is to travel to the past of each act in every zone is and destroy the Robot teleporters found there. It is these machines which causes the "Bad Future" of the zones.
 * 2) The more easier method is to complete the Special Stages and collect all seven Time Stones. Possessing all these stones will assure Good Futures in all the zones and the good ending of the game.

So the Time Stones may not just grant the ability of time travel but may also grant the ability of "time alteration" by will as well. With all seven stones, Sonic no longer needed to destroy robot teleproters as just haing the Time Stones corrected Little Planets future in his favour. Something Chaos Control 9yet) unable to do in modern Sonic games.

That would be my ideal story for Project Sonic 2017. Dr. Eggman uses time travel to erase his failures with Sonic and succeed in conquering the world and the Time Stones must be collected in order to reset the timeline.

Perhaps the reason why Sega have not bothered with the Time Stones is because they are exclusively found on Little Planet. However Sonic CD bad ending shows Dr. Eggman stealing one of the Time Stones, so it is possible to remove Time Stones from Little Planet. So maybe Little Planet gets destroyed but the Time Stones scatter on Earth and must be collected for Sonic '17?

I'm purely speculating, but still hope Time Stones will play a key role in upcomming game if Classic Sonic is present due to time travel shenanigans.