Just realised I didn't reveal the results of the cup game. A) You picked incorrectly. The magician laughs at you for picking the cup he revealed to be empty. You get nothing. B) You picked correctly! As a prize you get 10 pokeballs. C) You picked incorrectly. You get nothing. D) You get nothing.
I actually random.org'd it. It had 1/2 to be in the left and 1/4 to be in each of the other two cups.