Greymon (Blue)

BlackGreymon is a viral Greymon, more blue than actually black.

Digimon World Data Squad
Greymon (Blue) is an unlockable digivolution in Biyomon's galaxy. He also appears as an enemy in some zones.

Digimon D-Project
A bluish virus version of Greymon can be seen on the Digimon Dictionary.

Digimon Rumble Arena 2
BlackGreymon is the digivolution of BlackAgumon, and can warp digivolve into BlackWarGreymon.

Attacks Attacks in Digimon Rumble Arena 2
 * Bit Fire: Breathes out a small ball of fire.
 * Great Antler: Attacks multiple times with the horns on the head.
 * Flame Breath (Mega Flame): Breathes fire.
 * Fire Horn: Attack with a burning horn of fire.
 * Grey Tooth
 * Great Antler Attack (Great Horn Attack)
 * Great Antler Bash (Great Horn)
 * Tail Whip
 * Great Antler Drop (Great Horn)