They should make a range of playing cards. Strange animals that live in balls can be pitched against one another in arenas.
They could have a Tag line like "Gotta Catch Em All" and release so much merchandising that they make more money in a single year then Sony made in the lifetime of the PS1.
They could have a run of movies based on the concept and really milk it.
But Nintendo would never ever think to do anything like that
They only make video games.







