Merukimon

Merukimon is one of the major antagonists in the anime, Digimon Data Squad

Merukimon first appeared when he went to the Real World. Just as the DATS were about to finish off Falcomon, a bolt of lightning blocked the Mega Burst attack, and Merukimon suddenly appeared. He easily defeated GeoGreymon and the the others and took Falcomon back to the Digital World with him.

The DATS went on a journey to the Ice Ridge, where Merukimon dwells. When they got there, they started to battle him. But unfortunately, the DATS were once again defeated by Merukimon. Yushima summoned his partner Digimon, Kamemon, who digivolved to Gwappamon and wrecked the dungeon of Merukimon's lair while the DATS escaped with Keenan and Falcomon and returned to the Real World.

After the DATS returned to the Digital World for a rematch with Merukimon, Keenan stopped the battle. Then Merukimon told about the past about Keenan's sad story. Merukimon misjudged that the DATS were not to blame for what happened from the past. He told them that a villainous scientist named Kurata was behind all this and was responsible for the massacre in the Digital World.

Kurata suddenly summoned a Gizumon, who snuck up behind Merukimon, and shot him on the right side of his chest, injuring and wounding him. Merukimon then, used the last of his strength and sacrificed himself to damage Gizumon. Gizumon then shot its laser at Merukimon, killing him.