Destromon, the desolation Digimon. When Vemmon came in contact and fused with the prototype SSS Class Battleship Juggernaut, it used it's unique ability to transform the sum of it's parts and trigger digivolution, transforming into that titanic Destromon. Destromon has such overwhelming firepower that no navy or destructive power on earth can even dent it's armor.
Having upgraded all of it's armor and weaponry, Destromon now sports offensive power beyond a plethora of Mega level Digimon. This several hundred meter tall titan can lay waste to entire cities in mere moments and has at least ten weapons facing any side it's body at a single time. It is believed that if it were allowed to continue, it would have easily reduced the entire population of earth to zero!
Digimon World 3- Destromon
by Shen: King of Digimon