Within the second level of the Clock Tower stage, there's a hidden exit which in the Japanese version when entered will feature a cameo by a Japanese personality accompanied with a secret message from them. If encountered on either easy or normal difficulty, idol Hiroko Nakayama will appear with a different message on each difficulty. When encountered on hard mode, Weekly Famitsu chief editor Hirokazu Hamamura will appear. Both personalities were hosts of the video game TV show Game Catalogue II which also mentioned the secret in the July 8, 1995 episode with behind the scenes footage shown in the July 22, 1995 episode.