Jumping jack is a fun jumping game with an interesting concept. We are a kid who has to jump and avoid obstacles that are in our path or else we die. We have to use the left and right arrow keys to control the jumps left arrow key is small jump and right is high jump. There are also prizes that we have to collect to discover secrets, like more lives and score bonuses. The sound effects are good. The trick to cross levels easily and to get more lives and high scores is to play the game few times and get good practice over the jumps good judgment will help too. Get as many power up bonuses as possible, time your jumps and use good combination of high and low jumps. This is not one easy game and as we progress, the rounds keep getting harder and harder but the later stages also have more prizes. So the idea is to get more prizes to progress to higher levels. Get a good high score and compete with others..