Check condition of the Virtual Head Gear:
Enter 0000-0000 as a phone number.

Horse racing mini-game:
Enter 1449-3800 as a phone number.

Shooting mini-game:
Enter 0148-1010 as a phone number.

Thirty Mini-game:
Enter 4086-6617 as a phone number.

Music test:
Enter 5440-6188 as a phone number.

Increase girl's impression points:
Enter 0000-0001-0000-0011 as a phone number.