No ads, nags, or in-app purchases. No internet connection needed. Fully functional offline puzzle game app. This free Android game app includes a collection of classic puzzle and memory games to help your mind focus, retain, and solve. 1) Lights Off - Turn off all of the lights with the fewest moves. It's trickier than you think! The game begins with a board of 25 lights set to ON (yellow). You must turn all of the lights OFF (blue). Each time you turn a light on or off it also toggles each ad