Upcoming beta (this week) Destiny of Spirits: http://blog.us.playstation.com/2013/10/07/destiny-of-spirits-on-ps-vita-detailed/
Monster Radar as well, although it's only playable in Japan I believe.
Anything Medabots!
With all the talk of Pokemon X and Y I'm curious what other series have existed that are monster collectathons.
Off the top of my head I can remember Monster Rancher, Jade Cocoon and Megaten.
Does Persona count?
Not a series but Ni no Kuni is kind of a monster collectathon.
Yeah its essentially what I want Pokemon to evolve into a hybrid of real and turn based action.