It also had the addition of Felyne Companions which are now commonly implemented in MH games known as Palicoes. (cogconnected.com)
Both of these gear sets can be equipped for Felynes in either form — as A.I. support companions for hunters called Palicoes or with players directly controlling them in Prowler mode. (nintendofuse.com)
That's right, you can dress up your newly playable felyne in a costume based on the fittingly cat - eyed Toon Link. (nintendowire.com)