With Shadow taking center stage, Sonic X Shadow Generations is a lot more than just a nostalgia-packed remaster of one of the best Sonic games.

Sonic X Shadow Generations ties prominent lore together with one part of Shadow's story going nowhere, but the future may be full of surprises.

Whether you're on an act or challenge stage, here's where to find every Collection Box Key in Space Colony ARK in Sonic X Shadow Generations.

Originally released in 2011, Sonic Generations was designed to be a celebration of the series. It split the action between the classic 2D gameplay of the Genesis titles and the shakier 3D stylings of the later releases.

Sonic X Shadow Generations has a bunch of returning enemies to face off in both of the titles. One of the fortunate ones is Shadow the Hedgehog, who now has his own game attached to Sonic Generations.

Sonic X Shadow Generations puts two adventures in one game, and Sonic Generations has a few more touch ups than most remasters for a few reasons.

Sonic X Shadow Generations makes a longstanding piece of Sonic lore real, and it uses it to expand important series events beyond simple exposition.

Sonic fans are in for a real treat, as Sonic X Shadow Generations already has a nice little discount at Woot ( see here ). Normally this game is listed for $49.99, but it's currently down to $39.99 so you can save $10 on it.

As of Oct. 31, you can get Sonic X Shadow Generations for Nintendo Switch at Woot for $39.99. That's $10 off and a discount of 20%. The game just debuted about a week ago, so you're still getting in on the ground floor here — not too shabby of a deal. This is for the Switch edition only, and you'll be getting a physical copy, not a digital code.

Sonic x Shadow Generations sales have topped a million on the day of the game's launch, developer and publisher Sega has announced.