Previously, Peter had asked the queen insect to send out an A-Grade mutant creature to test the attack and defense of the smart mechas. This was the best way for Peter to determine the strength of the other party.
However, when the A-Grade mutated vulture failed to cause any harm to the smart mecha, Peter suddenly recalled that mutated creatures could self-destruct.
The self-destruction of an A-Grade mutant creature would cause terrifying damage. Although the damage from the explosion was not as great as that of the S-Grade queen insect, destroying the defenses of a mecha should be no problem.
Previously, Peter had experienced the self-destruction of the S-Grade queen insect. As a result, his entire body had been blown up badly. If he didn't have the ability to regenerate himself, he would have turned into a corpse.
