Gameduino 2 with 4.3" 480x272 Display and Touchscreen is a shield that adds a bright 4.3 inch touchscreen, an embedded GPU, headphone jack, accelerometer and microSD slot to your Arduino - or anything else with an SPI interface. Everything you need to create your own games.
Sound output is via an amplified headphone jack. The system supports a selection of built-in samples and instruments, and can also play samples from video memory, at up to 48KHz.
The sound and graphics are definitely old-school, but thanks to the latest FPGA technology, the sprite capabilities are a step above those in machines from the past.
The FT800 graphics co-processor can handle media in several formats to reduce the memory footprint:
Built into the GPU’s ROM are:
Developer Product Page: http://excamera.com/sphinx/gameduino2/
Adafruit Product Page: https://www.adafruit.com/products/1654