It is party night in the biggest arena in town, and the stage is hidden behind a wall of gift boxes stacked higher than the speaker towers. Every box holds a prize for someone in the crowd, but first they have to come down. Pixel Ibai Llanos hops onto an inflatable stage cushion with a single beach ball, and the whole arena starts chanting the name of the game: Crowd Bounce.
The fans do not just watch. Every ten boxes that fall, somebody in the stands throws another beach ball onto the stage, until four are bouncing at once. Golden tickets flutter out of some of the boxes, well worth catching. Let every ball slip past three times and the show is over. How many walls of gifts can pixel Ibai open before the lights come up?










