The Japanese version functions the as the other versions do, exactly 1 damage per attack.
I believe this is an underflow, when I lowered the Locust Plague's attack amount
they did at least 99 damage, but when I changed their attack stat to 2,
they did 2 damage per attack instead of 255.
This is not an error with the enemy stats, as they are essentialy the same
in both versions, with sprites being the difference.
Also, I found something interesting about Lord Kilburn.
In the Japanese version of the game, he's having a nightmare.
When the event was being edited, they must have forgotten to remove