VGA Tetris With Arduino Uno

I have reproduced a color version of the classical game TETRIS running for a VGA monitor, by means of a bare Arduino Uno and few other components. The goal was to avoid any special shield or supporting IC. The only needed components are four buttons, few resistors and a DSUB15 connector. I used Arduino IDE 1.6.4. and the VGAx library done by Smaffer and publish on GitHub here.”