Adaptation of the famous Jetpack Joyride mobile app on Casio graphical calculators.
You will need a Casio Graph 75/85/95, or a tweaked Casio Graph 35+, and FA-124, the official Casio transfer program.
All the necessary informations concerning the installation or tweaking of Casio calculators can be found on the official planete-casio.com game page
I used fxSDK, the official SDK for Casio add-ins development. All the game is written in C.