The Velleman MK159 Brain Game Electronic Solder Kit has 4 LEDs and 4 push buttons which provides hours of fun. The aim-of-the-game is to repeat a pattern, which is generated at random. The pattern is played both visually and audible or visually only (selectable). The MK159 project kit features 4 difficulty levels, which can be selected at start-up. The replay speed gradually increases during the game, to make it even more challenging. Low power consumption. Microprocessor controlled. Auto power off.