Every monster has its own characteristics.
For example, the Red-eyed Rabbit is extremely agile and incredibly fast. Even with automatic targeting, his "Heavy Machine Gun" struggles to hit it in open terrain. He once experimentally fired 100 rounds of level 1 bullets, all missing completely.
However, in free fall, it almost loses all its agility, and the Train Assistance AI easily predicts its falling trajectory, allowing the level 3 bullets fired to almost all hit the target.
He consumed 300 rounds of level 3 bullets just to blast off the two arms of the level 3 zombie.
But to kill these two level 3 Red-eyed Rabbits, only 51 rounds of level 3 bullets were consumed.
Although both are level 3 monsters, there is a stark difference in defense; of course, size is also a crucial factor.
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