Classic retro game clone. Have fun, improve your memory, learn PI or challenge friends. The only clone with IQ-mode, PI, and optional rectangular buttons. "Last" and "Longest" replay buttons as in original 1978 model from Milton Bradley/Hasbro. Free. No ads. No permissions required. Options - Sounds: Classic, Animal, Phone - Number of buttons: 2 to 100 - Full screen - Hide button lamps, use button sound only - Button colors can be changed - Speed: Slow, normal, fast or increasing - Show only ne