Focusing on the view that the interaction between the "design" of the pachinko machine and the player shapes the experience of playing pachinko, this article discusses some new aspects of players' experiences. It shows that players repeatedly play because the "predictability" of winning attracts them. This is assumed based on the numerical data presented by the pachinko machine manufacturers or the design of data-related presentations around the pachinko machine. This article also focuses on the belief and practice of "Okaruto" which players spontaneously create and find enjoyment with. Finally, it concludes that pachinko players are not only enticed by the seeming predictability but also hold their ways to find excitement from the unpredictability of betting.