Many characters from the game Street Fighter can be recognized among the crowd of Genkai's successor wannabes: - Zagief can be seen behind Kuwabara while Yusuke is talking to him outside the temple. - On the lottery scene, you can see Ryu holding a white piece of paper from his lottery envelope, meaning that he doesn't have enough Spiritual Energy to pass. - You can see the back of a girl going inside the temple for the first test (the game arcade) that very much resembles Chun-lee.