Tetris MicroCard

The Tetris MicroCard is an officially licensed dedicated handheld. The system is powered by an ATmega 328P and has a 1-bit 128x64 OLED display. The system has a directional pad and two face buttons similar to Nintendo's Game Boy, as well as two switches on the top for power and sound. It's powered by a small 180mAh battery which can be recharged using a standard Micro-USB connector on the bottom of the device.

The game is a simple but fully-featured rendition of Tetris based on the official Tetris guidelines. The d-pad is used to move your Tetrimino to the left and right, as well as perform a soft drop or a hard drop. The two face buttons are used to rotate your Tetrimino clockwise or counterclockwise. The game has a total of fifteen levels of difficulty which like other version of the game simply increase the speed at-which the Tetrimos fall as you clear lines.