The OKO Game©, Bingo reinvented! The vintage objects in Yesteryear OKO are sure to help players of all ages sharpen their concentration and powers of observation. The first player to line up five tokens vertically, horizontally or diagonally wins the first round! GET READY TO SHOUT OKO! Contents: 12 game boards 52 picture cards About 100 chips Game rules Save your chat history.