Zhang Xu reacted immediately, rolled and retreated a few meters, not caring about his injuries, decisively pulled out Lolok on his waist, his red eyes in the killing state must be as accurate as a sniper in a hundred steps, locked on the mutant bat in the distance, the body of the gun shook, and a 9mm bullet advanced along the magazine, mixed with red flames, and went straight out at a speed of hundreds of meters per second!

Zhang Xu knew his shortcomings, he lacked long-range attacks, and he was even more dry at the enemies in the air, so he could only make up for it with the help of firearms.

The propagation of ultrasonic waves in the air will consume energy, and too far away will greatly reduce the power, so there are only more than ten meters between Zhang Xu and the mutant bat, and at such a close distance, the firearm is enough to cause danger!

Now the Python Transformation is no longer usable, because the injuries left by the battle between himself and the Steel Claw Zombie have not yet recovered, and he can only go all out in the moment just now, and he dare not have any reservations.

"Bang!"

The sound of gunfire echoed through the tunnel, although the mutant bat had a fatal wound on its body, it could not stay in place, immediately retracted the ultrasound, and flapped its wings, even if the mutant bat was injured, it could still dodge the bullet!

It's a pity that Zhang Xu won't just shoot one shot, his eyes are sharp, frozen in the distance, like a straight sword, he can kill the enemy at any time!

Bang bang bang! After pulling the trigger, Zhang Xu knew that the speed of the mutant bat was amazing, so each of his bullets attacked in front of its route in advance, which is called prediction, a common term in the game, to attack in advance on the enemy's course of action!

It's a pity that under the rapid rebound of ultrasound, the mutant bat can save the day every time, Zhang Xu's expression is heavy, all it can rely on is the ultrasonic positioning bullet, but unfortunately the speed of the bullet is not comparable to the mutant bat, and finally a bullet has played its role!

The golden bullet showed a spiral motion, and it drilled into its weak body, and the powerful impact force suddenly made its back explode a green blood hole, and it was hit in a trance a few times, but unfortunately the bullet did not stay in the body, but passed through, although such a wound was painful, but not fatal!

"Woohoo!" Angry, the mutant bat was already extremely angry, not only was the prey in front of him not killed, but also fought back vigorously, as the air lord of this area, how could he continue to watch him rampant?

It hissed a few times, piercing and sharp, and the next moment, it flew away from Zhang Xu, the total length of this tunnel was only a few hundred meters, and now the distance between the two was already the largest, and it was even more delusional if the bullet wanted to hit the mutant bat, it was ready to charge!

The next moment, a sharp turn flew towards Zhang Xu, but unfortunately the terrain here weakened the mutant bat, making it much less playable!

It was very smart this time, it chose to fly close to the ground, and it was close to the entire cylindrical tunnel, showing a spiral trajectory, which made Zhang Xu even more unpredictable, and the black figure drew a gust of wind on the ground, and it was about to fly over.

At the moment, he also took out another Rolloc in his left hand, the two guns were erected, and the tunnel flashed at great speed, Loroc is an automatic pistol, as long as the automatic button next to the gun is pulled, it will be converted to extreme speed, and the rate of fire similar to that of a rifle can only last less than tens of seconds, the manic fire snake spits out a metal storm, but the black shadow did not slow down in the slightest, let alone pause to be hit.

Although Zhang Xu did not load the Rolloc pistol with an expanded magazine, the two guns combined also had 40 rounds, but not a single bullet missed, Zhang Xu knew the scarcity of ammunition in the last days, and each bullet could be exchanged for a lot of materials in a large gathering place, Zhang Xu's heart was dripping blood......

In tens of seconds, the mutant bat has attacked, and the first is its special skill, compressing ultrasound!

After it evolves, it has huge energy and improves all its abilities, just like ordinary people become evolutionaries, their physical fitness will be comprehensively improved, and a series of strength, perception, and vision will become more perfect and powerful, and mutated creatures are no exception!

Compression ultrasonic, as if a box can only put a complete cake, the weight is very light, but if you want to hold more cakes, you need to squeeze them together, so that the same box can put down 3 pieces, but the aesthetics must not be good, but the weight is full, the same is a box, the weight of the latter is greater, the result is not the same, the former can not eat, the latter can eat, so when the energy accumulation reaches a certain level and then release, the power is unusual!

The air seemed to appear as a wave-like ring, crashing into Zhang Xu at a very fast speed!

Zhang Xu frowned, feeling a different sense of danger, which is not experienced by ordinary people, but the special forces who have been born and died all the year round have a deep feeling, this is an instinctive reaction to avoid the enemy's bullets.

Earthquakes, tsunamis, volcanic eruptions and other natural disasters in the face of many creatures can know in advance, and hurry up to move, they all have a sense of danger, and most of the comfortable environment in human life has long lost the previous ability, but with the end of the world, everyone has returned to the primitive steel jungle, every day and death company, this instinct has gradually begun to appear in human beings.

Zhang Xu dodged in advance, and the ground under his feet just now had exploded, the powerful ultrasonic wave can make the object resonate, and achieve super internal destructive power, the ground is not as intact as Zhang Xu, the steel bars under the ground have long been broken into slag, and the cement has also turned into powder, if it is hit, no matter how strong Zhang Xu's repair ability is, it will become meat foam in an instant, and it is too late!

His eyes squinted at the big pit on the ground, thinking of what would happen if this means attacked him, the cold sweat on his forehead gathered into water droplets along with his eyebrows, from becoming an evolutionary to the present, there are really only a handful of cold sweats, today Zhang Xu has seen the strange ability of this mutant bat, the unknown is the most terrible opponent, and it is a very dangerous thing to not know the ability of the other party!

The attack speed of this ability is very fast, and the means are like qigong that hurts people in the air, the cautious Zhang Xu looked up, and the mutant bat disappeared into the depths of the tunnel again, preparing for the next round of counterattack!

Compressing ultrasound is not a simple matter, for mutant bats, it also takes a few minutes to recover, plus the injury, it takes more than ten minutes!

After seeing the horror of compressed ultrasound, Zhang Xu is now in a dilemma, whether to retreat or kill!?

The current mutant bats did not take the initiative to attack, but once the injury is healed, it will increase the tendency to attack humans, if you choose to kill, the counterattack before death may be more deadly, and Zhang Xu knows his injury, many bones have just been connected, and they will definitely break faster if they come again......

Thinking and vigilant, wandering in his mind for 3 minutes, Zhang Xu patted the back of his head and exclaimed: "Yes, there must be a limit to this level of attack, otherwise it will not attack and turn around, this is not its tentative attack, but a manifestation of exhaustion!" After talking to himself, his eyes turned into the distance, and he was a little more ruthless!

Kill, this is Zhang Xu's choice!

Mutated creatures are scarce, and every crystal of hope is a rare resource, and as long as an evolutionary does not die, he can bring more wealth to others, which is precious!

Can't give it a chance, this is a thought of Zhang Xu!

Hundreds of meters is just a very short number for Zhang Xu, the heyday can reach a speed of 200 meters per second, but now in order to match his fragile bones, he can only reduce the load, and the speed of 100 meters per second is also very terrifying!

The red pupils ignited by the killing state seemed to others to be two red lines, and the body under the wild rush had turned into a black shadow, and the bone swords on both sides glowed with ghostly light!

Of course, the mutant bat sensed that it could only use ordinary ultrasound now, but when the enemy in front of it came, it could only stop there, and suddenly reduce its altitude to avoid the attack.

On the other side, Zhang Xu raised his foot and jumped, and the impact of the explosion made him directly reach the highest level of the tunnel, the black light flashed, and the bone sword did not cut it, but unfortunately he couldn't borrow force in the air, so he could only watch it dodge his own slash, but seeing that the mutant bat actually didn't respond, Zhang Xu knew it in his heart!

At that moment, Xuehe pushed, pushed himself to the side wall, and immediately walked vertically, as if he was walking on the ground, every step was a broken crack, but this could not catch up with the mutant bat, and controlled Xuehe to pick up a broken wall, trying to slow down the flight speed of the mutant bat!

"It worked!" Zhang Xu was overjoyed, even if he didn't hit the mutant bat, the flight that cost him to dodge did slow it down a lot.

Although the rubble thrown up is not large, the mutant bat seems to be very afraid of this, even if the stone is only the size of a marble, it seems to be afraid of hurting itself, and does not dare to hold it up, but blindly dodges.

……

The mutant bat kept wandering and flying in the tunnel, and when Zhang Xu, who was chasing after him, saw that he was about to get closer, he saw a clue, it was not afraid of fighting, but preparing something, and suddenly thought: It's not good!

The mutant bat turned back suddenly, opened its fangs, and a lightning attack came, but fortunately, Zhang Xu had some time to react and jumped high, this time not compressing the ultrasound, but tentative claws!

But fortunately, Xuehe, the two red tentacles flung in front of him, causing the mutant bat to sink suddenly, and he didn't choose to hit it hard, and at this time, Zhang Xu had already landed and got up again, kicked the wall sideways, and the whole person popped out like a cannonball, heading straight to the mutant bat door!

A cold light struck, knowing that it would dodge, but unexpectedly, the mutant bat was surprisingly bold, and it did not retreat, but two sharp claws clasped Zhang Xu's bone sword, and was thrown out by Zhang Xu's arm in an instant, with this power, its blood-red gaze locked on Zhang Xu, and the air was its battlefield!

In the middle of the air without any borrowing point, Zhang Xu felt a cold killing intent solidify himself, as if every second became extremely slow, and the order to dodge in his mind was delayed but he did not respond, belatedly, a sense of crisis sprinkled on Zhang Xu's head, like a gloomy dark cloud hanging in the sky!

A swift wave twisted the air, undulating, like a tumbling wave, straight towards Zhang Xu, the speed of this ultrasonic wave and the speed of sound propagation are the same, 340 meters per second at a standard atmospheric pressure, this speed is no longer something Zhang Xu can dodge, not to mention that he is still in mid-air.