While I'm surfing the Japanese site of SQUARE ENIX, interestingly I found this 2 new game in the same logo like Nanashi no Game
Apparently the game is actually the Cursed game, somewhat like Spin off or just like a Mini version of Nanashi no Game
They are called Noroi no Game, 2 of them Noroi no Game Chi, and Noroi no Game Goku Noroi meaning Cursed, and you can tell the game title Meaning... Cursed Game Chi, and Cursed Game Goku
The Game Cost 500 DSi Points, a quiet cheap for a mini game like this... You can already download it on DSi Store since it already shown up Interestingly I found the game have the rating B CERO (or 12+ or Teen in ESRB) for a Bloody Gore Platformer and Gory RPG like that? now that's cool