Boktai: The Sun Is in Your Hand Cheats

Any of the Undead sleep when they have "Zzz" over there head. These are the times of their sleeping. A Ghoul (Bok) sleeps from 6-6:30 AM. A Mummy sleeps from 9-9:30 AM. A Golem sleeps from 3-3:30 AM. And a Cockatrice sleeps from 12 PM-12:30 PM.

When the game asks to cover the Solar Sensor with your hand, do this in as dark a place as possible. If done right, the Solar Sensor will be extra sensitive.