there is a guy with a jet pack always falling slowly unless the payer touch spacebar, the game goal is to avoid being hit by birds, birds come from all directions in the screen and always spanw near the screen borders, you must use spacebar to fly (flappy bird style) and arrows to move. Each bird avoided give 5 points, birds fly faster every 50 points. birds spawn increases every 100 points, screen borders and birds kill the player when collide with him, the game start with a count down from 5 (show big numbers for the count down in the center of screen), you spawn in the middle of the screen and start falling slowly