Dark Soul

A Dark Soul is a regular NetNavi soul engulfed by Dark Chips. Generally, the body turns black and after a while of use, the eyes of the Navi go away and all they can say is when they see a Dark Chip is "DARK CHIP. GIVE IT TO ME!!!!" Also, blotches of black appear on the Navi's body. This is an obvious sign of Dark Chip addiction. It should be noted that this only happened to FlashMan and DesertMan. This also happened to MegaMan, but through a different means. In the games, he was turned Darkloid through Dark Chip implants, while in the anime it was a painful bite to the neck from ShadeMan that did this.