The Casio MG-880 Calculator is one of the most memorable parts of 1980s culture. The calculator let you play Space Invaders-style games and musical melodies, giving school students hours of secret fun during math classes. Now it's back as the Casio Game Calculator SL-880. It features a shooting game: just press the decimal key to match the incoming targets! Of course, it also works perfectly fine as an ordinary calculator.
The Casio Game Calculator SL-880 features: