Press the space button to run the program. Then, use the arrow keys to move Rob around after you read the blue box. The blue box will disappear and you will see five items. If you walk over to the items then click on them then they will disappear. After you pick them all up then press S for a surprise!
All of these items are from the scratch library besides the blue box and letters which I made. I also made all the stuff that happens besides Rob after you press S.