Change the default sprite costume to illustrate the computer guess (paper, scissors or rock = you will need to create 3 costumes)
Extension - other improvements:
improve the user experience, by allowing me to click on my own choice (make tiles), or type a number instead of the whole word (e.g. 1 instead of rock, 2 instead of scissors etc.)
stat tracking - tally wins / losses, other stats such as number of rocks, scissors etc.
