>>49973981Leviathan destroyed Tokyo and assimilate all humans.
Quartzmon fused with the entire world
https://wikimon.net/File:Quartzmon_earth_dxw79.jpgIn Digimon Next, VictoryGreymon defeated NEO who has the power to destroy and recreate an entire universe (which he did), as well as separating time and space.
BlackWarGreymon would also be able to destroy everything in 02, like you can see during the fight against WarGreymon and ImperialDramon FM
https://www.youtube.com/watch?v=BiTsilPMraEZeedMillieniummon was able to create damage of such scale that you could see the curvature of the Digital World
https://www.youtube.com/watch?v=750Zbu0Gt7EDigimon power are at a level where it's either you have to stop them before they could release their power or that's the end of the show (like with Apocalymon who was about to destroy both worlds but was stopped by the Deus Ex Machina of the Digivices).
Also, the Tentacruel who destroys the city was a thing that only appears in the anime, so you're talking about a special Tentacruel who has the size of a building, when the average size of a Tentacruel is 1,6m (or 5'03'' in dumb system of measurement). He was also helped by hundreds of Tentacools and was really slow in comparison of many Digimons.
