So, Nintendo is releasing Rittai Picross (Solid Object Picross) in Japan on March 12. That’s a month away and we know next to nothing about the game. Rittai Picross is essentially 3D Picross. Players chip away at a giant block and rotate the camera with the stylus.
I scouted around for more details and discovered Rittai Picross has 350+ puzzles. Beat those and you can make your own in edit mode similar to Picross DS. User created puzzles can be traded with friends wirelessly, but not necessarily over Nintendo Wi-Fi. No word on downloadable puzzle packs either which were an awesome feature in Picross DS.