Sonic Mania Plus releases in physical form on July 17 for PS4, Xbox One, and Nintendo Switch. Even if you already own the core Sonic Mania game you might want to consider picking up the hard disc instead of just opting for the $4.99 DLC download of the Plus expansion, because the disc comes complete with some really cool extras.

Here's a close-up look at what you get, including a peek at the art book (complete with character bios and loads of concept art) and the reversible game cover, with PS4, Xbox One, or Switch on one side, and a retro Genesis design on the other.

Click to enlarge the image:

It's easy to miss, so make sure to take a second look at the back of that Genesis cover. You'll see it's written in an authentically radical 90s style, complete with a shout-out to "blast processing."

Sonic Mania was already a dream come true for dedicated fans of the classic Sonic gameplay and visuals, and it's nice to see Sonic Mania Plus doubling down on the retro attitude that made the core game such a hit.

For more, read our full review of Sonic Mania Plus.