This virus didn't destroy data. It copied it.
Some popular Digimon in the game include: digimon battle spirit 1.5
Between the fall of the first Sovereign and the rise of the next tournament, a glitch in the Digital World’s rebirth creates a half-formed realm where defeated Digimon refuse to fade—forcing old rivals and new fighters to battle not for glory, but to repair reality itself. This virus didn't destroy data
Version 1.5 introduced three new arenas that emphasized verticality and environmental hazards: Version 1
Digimon Battle Spirit 1.5 has a dedicated fan base, and its impact can still be seen in modern Digimon games. The game's success led to the creation of sequels, including Digimon Battle Spirit 2 and Digimon Battle Revolution.
To stop this, the original tournament's top fighters must re-enter the Coliseum—but this time, they can't fight alone. The glitch forces Tag Battles (a new mechanic for 1.5). Each fighter must pair with a former enemy or rival.