Makey Makey is a fun tech device that allows you to explore your creativity with computer hardware and software.
SOCCER app (change to 1 player before starting)
Tetris app (try two players working collaboratively, one person does the left/right movement the other does rotate and slide)
Makey Makey APPS page - these are premade apps. All you have to do is build your device for interacting with the app.