Pong

Pong in ShiftOS is a port of the 1972 arcade game with the same name, however some gameplay features are changed (mainly in order to increase the difficulty level of the game). Pong uses a score system. Points can be converted to Code Points at several points in the game.

Gameplay
The ShiftOS version of Pong is played using the mouse. The player moves the paddle on the left side of the screen and a computer opponent moves the paddle on the right side. Whenever the ball hits a paddle, it bounces back with increased speed. The ball also bounces back when it hits the top or bottom side of the screen, however its speed isn't increased. If the ball leaves the screen to the left side, the game is over and the player loses all of his or her points. If the ball leaves the screen to the right side, the player scores a number of points. The minigame is divided into levels. Each level takes 60 seconds. After a level ends, the player may choose to quit playing and convert his or her score into Code Points or continue to the next level for a higher score.

ShiftOS is pretty much a pong clone.