TOKYO--Earlier today Nintendo Japan held a press conference outlining a product roadmap of new Nintendo 3DS and Wii titles. Strangely, though, there was no mention of the widely rumoured (and practically confirmed) right analog stick attachment for the stereoscopic console.

　　Say hello to the Nintendo Expansion Slide Pad. While the house of Mario is yet to officially confirm the existence of the add-on itself, a posting on the official Nintendo Japan website not only confirms it's real, but spills all of the details. According to the listing, the peripheral will be called the Nintendo Expansion Slide Pad and will be available on December 10, 2011, for ¥1,500 ($19.46).

　　The Nintendo Japan website also lists six games that will support the Nintendo Expansion Slide Pad: Metal Gear Solid Snake Eater 3D, Kingdom Hearts 3D, Resident Evil: Revelations, Ace Combat 3D: Cross Rumble, Dynasty Warriors VS, and Monster Hunter Tri G.

　　Exact specifics on how the Nintendo Expansion Slide Pad connects to the Nintendo 3DS are unknown at this stage. Interestingly, though, the Nintendo Japan website says that the peripheral will require one alkaline battery to operate, which suggests it will run off of its own power source.

　　For more information about the Nintendo Expansion Slide Pad, stay tuned to GameSpot.