when the right arrow key is pressed, the sprite moves to the right when the left arrow key is pressed, the sprite moves to the left when the up arrow key is pressed, the sprite moves to the up when the down arrow key is pressed, the sprite moves to the down when the space bar is pressed, the sprite moves to the center of the screen. when the letter "a" is pressed, the sprite plays the meow sound, moves 50 spaces forward, and displays a "Hello!" text
