Dark Gun Parts
Beat the game once to obtain the Dark Lens. Beat the same game twice to gain the Dark Frame.
If you beat the same game again on hard mode you get the Dark Battery.
You cannot mix the Dark parts with the normal parts.
The Dark Gun only functions when all the Dark Gun parts are combined.
Black Hole Sun:
To fool the solar sensor you use a black light to recharge your power.
More tricks, tips and cheats for this game are right here - Boktai: The Sun Is in Your Hand cheats
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