For this achievement, you'll need to play and win a game of Connect 4x4 Original. It is best to use 4 controllers for this achievement so that there are no AI players to screw things up. Before you start the game, make sure to go into settings and change the rounds to "First to Win 1". When it is the other controller's turn, just make sure they don't get a connect 4 and you'll have this achievement in no time!