move the apple cart (the green cart) left and right with the left and right arrow keys. avoid the bombs and the tnt because they will make you loose points try to catch the apples and the stars. the longer you remain in contact with the items, the longer the effect will be. due to a slight glitch in the code, the items may stop falling, if this is the case, than press the stop sign and than click on the green flag again. there is a timer so that you will know how long you have been playing and so that you can time yourself.
thanks to @mybunnytoots for the idea