The Time Stones (タイムストーン Taimusutōn?) are objects that appear in the Sonic the Hedgehog series. They are seven gemstones that lie dormant on Little Planet, and have the power to control time.
Overall, the Time Stones are depicted as seven hexagonal stones that come in the colors red, orange, yellow, green, blue, purple, and cyan. Their size, however, has been rather inconsistent; when Sonic was obtaining them, they were shown to be about the size of the hedgehog's head, while in a possible event of the Little Planet incident, they were small enough to fit inside of Dr. Robotnik's palm.
Powers and abilities
The Time Stones have the power of freely controlling time to perform amazing wonders, like transforming a desert into a jungle, and turning a polluted lake into a beautiful one; just one Time Stone can be used to make impressing actions, like transporting entire planets across spacetime and restore the state they had at some point in the past. Additionally, with all seven Time Stones in hand, the user is able to command time itself in order to cause miracles to happen.
In Sonic the Hedgehog CD, the Windows 95 version, and the 2011 remaster, Dr. Robotnik attempted to collect the Time Stones in order to take over Little Planet and the rest of the world. However, Sonic ended up finding them first instead.
In gameplay, Time Stones can be collected in seven different Special Stages. In order to enter a Special Stage, the player has to hold fifty or more Rings and jump into the Giant Ring at the end of a Zone. In a Special Stage, the player has to destroy all the UFOs to get a Time Stone. Collecting all seven Time Stones destroys every robot transporter automatically, thus always ensuring a good future for every Zone. Additionally, even if the player has finished at least one Zone with a bad future, they will get the good ending anyway.
In other media
Sonic the Hedgehog (TV series)
In the Sonic the Hedgehog television series, there were two Time Stones. They were found on the Floating Island, safeguarded by several forces. Sonic and Sally tried using them to go back in time and prevent Dr. Robotnik's takeover of Mobotropolis, but the plan failed.
Books and comics
Sonic the Comic
In the Sonic the Comic comic series and its spin-offs published by Fleetway Editions, there are only six Time Stones rather than seven (at the time, the series also included only six Chaos Emeralds). Their appearance was also somewhat inconsistent as they were both presented as gemstones and regular-looking oval rocks.
Hidden on the Miracle Planet, Dr. Robotnik eventually found a Time Stone and used it to cyberform all of Miracle Planet. As a part of a bizarre time paradox however, Sonic was able to use a Time Stone to undo Robotnik's work by changing history.
In the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics, the Time Stones and their background borrow elements from both the games and the Sonic the Hedgehog television series. In this media, the Time Stones are hosted on the Little Planet, where they are rumored to be protected by Nicholas O'Tyme or the Knights of Kronos. One of them is used by Silver the Hedgehog and Mammoth Mogul to travel through time.
After the Super Genesis Wave reset the timeline, the Time Stones became nearly identical to their game counterpart.