Tic Tac Toe Retro

The first game, you start with 1P bat first. In the next game 2P bat first, bat first in the order will continue to change. When the [VS CPU] in is checked, you can play against the computer. Computer degree of difficulty is, EASY, NORMAL, of two kinds. EASY is very weak. NORMAL is reasonably strong. Remove the check of [VS CPU], you can 2P play. When you want to think carefully alone, let's play in this mode.