This is simple tetris game clone developed by Johannes Treu.

The game consists of separate boards: one for LED display where 240 LEDs are aligned one for Atmega8 microcontroller board with other circuitry and pushbutton board. The idea looks nice-feels like I want to play the game couple times. If you want too, then go ahead. All files are available at avrfreaks site or you can download circuit and source here.