Board Thread:General Discussion/@comment-4911512-20151211222441/@comment-969093-20151212075509

Storyline-wise Lunastra was indeed the "final boss" for offline mode in MH2. After beating her, iirc, you could finally gain access to upgrading the shipyard to lv3 and travel to Kokoto, where you could finally hunt monsters like Rathalos and Chameleos.