If you grew up in the 80's you shouldn't need additional gameplay instructions.

On mobile phones and Iphone use the gameplay control buttons shown on your screen (only on mobile) to play and start the game. On a computer you can click the Game Window Size button to rotate between default, 1.5X and 2.X game window size. Click Game Window Size Button to Zoom Game Size between default, 1.5X and 2XĬlick on the game window and hit the ENTER key to start Galaga (you might have to hit start twice).