Cross and Zero i. e Tic Tac Toe is made for both the children and the elders, even for the oldies if they like. Cross and Zero i. e Tic Tac Toe has been refurbished and redesigned with the modern day UI elements and the material flat UX animations. Cross and Zero has been always addictive irrespective of the age. Key Features. Eye catching, Modern UI with sublime annimations. Introduction of the game-sets in the Tic Tac Toe. Three levels of computer opponent for single player. Easy - for beginners (kids). Medium - for experts. Hard - for real tough players (try to win if you can.). Touch sound ON/OFF feature. Touch vibrate ON/OFF feature. Save the player names for future convinience. Small in size though containing annimations and ui components.