Enable special options
Press [A], [B], [C], [B], [C], [B], [A], [Start] at the title screen after the text "Press Start" appears. A special options selection will now appear in the main menu. Use this option to view or listen to the graphics, sounds and music tracks.
Unlock Voice Dramas
Highlight "Omake" on the main menu. Hold [L] + [X] + [Z] and press [C].
Voice drama background selection
Highlight a Voice Drama title, hold [C], and press one of the following codes.
| Background graphic | Code |
| Maki and Megumi surrounded by "deformed" versions of the other girls | L + Start |
| Maki in a tux and Megumi in a dress. | L + X + Start |
| Maki wearing gloves and Megumi holding a naginata. | L + X + Y + Start |
| Maina, Maki, Mami-chan, and Megumi in foreground, Kiyomi-san, Shizuka, and Yurika in background. | L + X + Y + Z + Start |
| Kiyomi-san, Mami-chan, Mika, Reiko-sama, and Shizuka in foreground, Maina and Yurika in background. | L + X + Z + Start |
| Cindy, Kiyomi-san, Mika, Misako, and Yurika. | L + Y + Start |
| Maina, Mami-chan, Reiko-sama, Saori, and Shizuka. | L + Y + Z + Start |
| Cindy, Maki, Megumi, Misako, and Saori all dressed in sailor fuku. | L + Z + Start |