The Grim Reaper is a Heartless boss, featured in Kingdom Hearts 2. Being cursed by the medallions of the Aztec treasure's chest, the Grim Reaper may sometimes assumes the form of a ghoul monster. The Grim Reaper plays a minor role in the second part of Disney Villains War.
Disney Villains War 2
Dealing with a Bag of Bugs
When Oogie Boogie calls upon his Heartless to deal with the Organization XII's member, Luxord, the gambler nobody summons the Grim Reaper to his cause. In a flash, the Grim Reaper tears apart Oogie's skin, causing it's bugs to fall off from it's skin, eliminating the source of his power.
The Battle in the World that Never Was
Later, Maleficent and her forces launch a full invasion at the World that Never War, in order to take Kingdom Heart for themselves. When Luxord perishes in the hands of Captain Hook, Saix summons the Grim Reaper to take care of Hook. The Grim Reaper manages to knock out the pirate. However, he is no match against Riku's dark powers, who blasts him dark aura at the Heartless, killing it.
Disney Vs Anime Villains War
Animated Vs Video Game Villains War
The Grim Reaper is summoned by Pete, seeing the hazard threat of the Emperor Mateus and his Warriors of Chaos, posing to him and his allies. Upon seeing Garland, the Grim Reaper swings his blade towards him. However, his attacks is backfired, when Garland grabs his weapon and throws it to the creature's chest, killing the heartless.