This is an improved version of the Moneycopter Game. The cat can now jump with the Up arrow key, apart from movement with Left and Right arrow keys.
The cat's jumo and the stone throw has a trajectory affected by gravity. I have removed the background image and the timer, so that you can enjoy the game as long as you want without interruption or distraction.
You can see the coding done in this game on the project's homepage at MIT's website.