We knew that the Underground from Pokémon Diamond and Pearl would be returning in the upcoming remakes, but now we know that it's also getting spruced up a fair amount, with an expanded map, "Pokémon Hideaways" that contain Pokémon which can only be found in that area, and a new mechanic that means the statues you place in your Secret Base can affect things in the real world.
Take a look at the new Grand Underground map from Brilliant Diamond and Shining Pearl, which features hints at some of those Pokémon Hideaways, as well as showing where each section of the Underground can be accessed from Sinnoh's island:
You can even see a few of the Pokémon in the Hideaways, like Psyduck, Swinub, and Slugma, although our eyesight isn't quite good enough to make out what some of the blob-shapes are supposed to be.
Compare that with the original game's map:
Doesn't that just look like a pile of terrible worms in comparison? Well... no, but it's certainly not nearly as cute.
Are you hyped for the new Grand Underground? Can you recognise any of the other Pokémon displayed in the image? Let us know in the comments!