Pochi and Nyaa is an arcade game. Additional details about this game's gameplay, plot, and developer are required to offer a comprehensive introduction. The title alone suggests a potential focus on characters named Pochi and Nyaa, but specifics about the game mechanics, genre, and publisher are unknown. 

Pochi and Nyaa

Plotting (World set 1)

Plotting (World set 2, protected)

Plotting (World set 3, earliest version)

Plump Pop (Japan)

Plus Alpha

Pocket Fighter (970904 Japan)

Pocket Gal Deluxe (Euro v3.00)

Pocket Gal Deluxe (Japan v3.00)

Pocket Gals V.I.P (set 1)

Pocket Gals V.I.P (set 2)

Poitto!

Poker Ladies