by João Vilaça @ vilaca.eu:
If you love classic games like Tetris (source code) and Breakout you can now build an Arduino console to play games on the go and in color. Youtube gameplay demo.
As most inexpensive LCDs work at 3.3v the Arduino for this project works at 3.3v too.
At only 8MHz the Arduino Pro Mini 3.3v is slow by today’s standards but fast enough for most classic games.
Other Arduinos or compatibles can be used in its place. If an 5v Arduino like the Uno is used you must use a Level shifter from 5v to 3.3v or you’ll risk frying the TFT.
Build an inexpensive handheld Arduino color console – [Link]