Waco (toymaker)

Waco was a Japanese toy manufacturer. It was known for manufacturing the handheld game "Electro Tic-Tac-Toe". Released in 1972, the game is commonly cited as the first commercially available handheld electronic game.
 However some sources do not consider the Electro Tic-Tac-Toe to be the first handheld electronic game.
The game was designed for two players.