Poyo is a spherical cat from an anime/manga called Poyopoyo Kansatsu Nikki as a series of shorts - I believe it's only up to episode 8 right now
The moment I saw this cat at last week's Game Con I fell in love with it X3 C'mon it's a round cat!!!
Go & watch the 1st episode here, it's only 3 minutes long even with the intro which I cannot stop watching 83 --> [link]
Poyo (C) Whoever created Poyopoyo Kansatsu Nikki
Art (C) *DreamBex