Rapid Prototyping

Table Tennis: In this two player game you each take turns hitting the ball back and forth.

Infinite Runner. Use the Up arrow to jump from platform to platform.

Space Shooter. Use the Arrow keys to move up and down and the space bar to shoot at on coming enemies. 

Hurdle. Continuously press the left and right arrow keys to propel your character forward and the up arrow key to jump over the hurdle.