Level 5 released a trailer for a game titled Ghost Watch last year, but it was a mystery as to what platform it would be landing on. The mystery is now solved, with the announcement that it will be a 3DS title.
Ghost Watch was revealed as a 3DS game in the latest issue of Japanese magazine, CoroCoromagazine - which thankfully Silconera has translated.
From what we can tell, the game follows the story of a little boy who has a watch that allows him to see and befriend ghosts.
There is no release date, or mention of a Western localisation, but you can watch the trailer here. It's not in English though, so don't expect it to make much sense.