Boktai: The Sun Is in Your Hand Cheats

On the main title screen, you will see a sun. The sun's rays move at different speeds depending on how much sunlight is striking the sensor. The rays move faster if there is more sunlight hitting the sensor.

When Otenko is following you around, there a a few, useless, fun things you can do with him. Fire a Rising Sun Grenade and Otenko will grow larger. Shoot him with the Sol Lens and will glow red. Shoot Otenko with a Flame or Frost Lens and he will glow white.