The word 'airou' is the Japanese equivalent of felyne ( Ailuro is the Greek word for cat), a fictional sapient cat species that appears in the Monster Hunter games. It was released in Japan on August 26, 2010.
Monster Hunter Diary: Poka Poka Airou Village is a spin-off installment in the Monster Hunter series, developed by FromSoftware and published by Capcom for the PlayStation Portable.