This monster attacked with its long sharp claws and long tentacles. The various werecat faces of the voodoo sorcerers attacked by shooting searing green lasers from their eyes or by shooting long green tentacles from their mouths, which, if successfully ensnared with prey, could fire a beam of darkness that would drain the victim's heart until all their life-energy would be completely drained, leaving the victim a mindless zombie for the Werecat Fusion Heartless to mind control to attack its enemies. When draining its victims, the faces of the werecats would hideously grin and their eyes would glow bright green. The Werecat Fusion Heartless could also summon hordes of Phantom Shadows and Voodoo Zombies to serve it in battle.
However, the Werecat Fusion Heartless, for all it's power, was extremely mindless and could not tell time, which led to its demise when Sora distracted the beast long enough for the time to conduct the ceremony to free Malefor and replenish youth was overdue, causing the Heartless to instantly begin to burn and melt into darkness and bones, before finally exploding in a huge bang of dust and darkness, separating all 3 werecats back into their normal selves, now freed of their curse...and at the mercy of the Shell Louge Squad. Immediately following their defeat, all 3 voodoo sorcerers are placed under arrest and sent to Prison 42, where they are to spend the rest of their miserable lives in jail to wallow in agony for allowing their lust for vengeance and immortality to consume them.