OmiyaSoft’s board game Culdcept can get pretty complicated. It’s kind of like a mix of Monopoly with monsters you summon from cards. Nintendo wants to make it easier to get into so they added cooperative play. An inexperienced player can team up with a pro in Culdcept 3D’s two player team mode. Culdcept 3D supports download play so you only need one cart for co-op.
Culdcept 3D has over 480 cards (like the Shadefolk posted below) and comes out in Japan on June 28.