When the eight xenon headlights on the front of the Unimog RV illuminated the six-story school building, the attacking mutant beast finally showed its prototype.

However, Han Feng looked at the mutant beast with a black light all over his body, a wingspan of more than ten meters, a few rows of sharp teeth, and a mouth sticking out, and his brows furrowed slightly.

Han Feng recognized at a glance that the mutant beast in front of him had evolved from a bat, but it was not easy to determine exactly from that kind of bat.

However, most of the bats are not too large, except for the special species of flying fox, most of the other species of bats have a wingspan of only 50-80 cm.

The mutant bat in front of him, with a wingspan of more than ten meters, was obviously not weak, and Han Feng could feel the majestic energy coming from its body.

This mutant bat is a gold-level mutant beast.

At the same time, in just a few seconds, Han Feng observed that the vibration in the teaching building just now was not caused by the bat hitting the building.

It was this mutant bat, as soon as it opened its mouth and hissed, the six-story teaching building began to tremble.

Obviously, while the mutant bat is hissing, there will also be high-frequency resonant sound waves directly in front of it.

This high-frequency resonant sound wave, which is inaudible to humans, passes through the surface of the building and acts directly on the interior of the building.

If you can't stop this gold-level mutant bat from continuing to hiss, then the teaching building of the medical school will definitely collapse in a short time.

However, it was not easy for Han Feng to quickly stop the mutant bats from continuing to hiss.

Although this mutant bat has a wingspan of more than ten meters and is quite large, its body is very agile and constantly flies up and down near the teaching building.

Every time it appeared in the irradiation range of the xenon headlights, it was only a short moment, and in such a short time, the Tianyan Yang electronic cannon could not complete the aiming at all.

And it is also very difficult for Han Feng to calculate the flight trajectory of mutant bats.

The mutant bat's glowing black body was a bit like a fighter with stealth paint, and once its figure entered the darkness, it would be quite difficult for Han Feng to find it again.

But when Han Feng observed that the tremor of the teaching building was getting worse and worse, and even the white plaster powder on the wall began to fall in large quantities and drift with the wind, he knew that he couldn't wait any longer.

If we wait any longer, the teaching building will definitely become a ruin.

So Han Feng waited for the figure of the gold-level mutant bat, and after flashing away from the xenon headlights again, he silently recited five numbers in his heart, and then directly pressed the red launch button on the center console of the RV.

A moment later, the red and white positive electron cannon lit up the night!

However, when Han Feng saw the red and white light that lit up the night sky, his face showed a look of regret.

Although he had tried his best to estimate the possible location of the gold-level mutant bat, there was still a slight deviation between the shooting path of the Tianyang electronic cannon and the flight trajectory of the mutant bat.

The Heavenly Death Yang Electronic Cannon, which has amazing lethality, grazed the body of the mutant bat and shot towards the uninhabited sky.

This attack by the Tianyanyang electronic cannon is equivalent to releasing an empty gun.

"Hiss——!"

The mutant bat felt the terrifying lethality of the Heavenly Dead Yang Electronic Cannon, and after passing past it, it also let out a roar.

The red and white anomatron cannon containing a huge amount of gamma light quanta can pose a deadly threat to mutant bats.

The gold-level mutant bat, feeling a real threat, also gave up attacking the teaching building and instead launched an attack on the Unimog RV.

"Good time!"

When Han Feng saw the mutant bat, he actually gave up the attack on the teaching building and instead launched an attack on the Unimog RV, his face showed a hint of joy.

This is the best result so far.

"Hiss——!"

When the gold-level mutant bat, flapping its wings, launched an attack on the Unimog RV.

Directly in front of the RV, a light blue light curtain suddenly rose, and it was obvious that the energy shield system was automatically activated after feeling the sonic attack of the mutant bat.

At the moment when the energy shield system was activated, a wave-like pattern appeared on the light blue light curtain formed by the energy shield system.

The gold-level mutant bat's own sonic attack is enough to make the energy shield system drink a pot.

As the wave-like lines appeared, Han Feng watched as the strength of the energy shield system also plummeted.

His face grew solemn.

If the energy shield system is penetrated by the sonic attack of the mutant bat, then the Unimog RV basically has no defense.

Although the armor layer on the surface of the RV is very strong, no matter how thick the armor layer is, it cannot resist the ubiquitous sound waves.

Based on the intensity of the mutated bat's sonic attack, it is estimated that as long as the Unimog RV suffers a few rounds of attacks, the metal structure of the body frame will slowly produce metal fatigue, and the entire RV is at risk of breaking from the middle.

Therefore, Han Feng finally couldn't help it after feeling the strength of the energy shield system after it dropped rapidly.

After he burst out of all the momentum on his body, he jumped out of the RV directly from the sunroof of the Unimog RV.

Han Feng is now using itself as bait to attract the attention of mutant bats.

Sure enough, as Han Feng burst out with all the momentum of a gold-level evolutionary, his body was like a torch lit in the dark night in the perception of the mutant bat, which was extremely dazzling.

"Hoo ——!"

Just as Han Feng was using himself as bait to attract mutant bats to attack, he suddenly felt a burst of roar that sounded not far behind him.

Han Feng felt the explosion from behind him, and without even thinking about it, he activated the Void Shuttle as soon as possible, and randomly selected a location to shuttle away.

When Han Feng just stepped in, the void shuttled through the dimensional space formed.

The burst of attack swept straight past where he had been standing.

The main attack method of the gold-level mutant bat is not a sonic attack, but a wind-type attack.

A giant wind blade about a dozen meters long shot out from one of the mutant bat's wings.

Although Han Feng used the void to shuttle and dodge the attack of the giant wind blade, this powerful giant wind blade directly flew off the large lawn in front of the teaching building of the medical school.

The large lawn in front of the teaching building of the medical school was attacked by the wind blade and disappeared in an instant, and the scene became like the Great Rift Valley.

At the original location of the lawn, a huge crack ten meters wide and twenty meters deep appeared, and the weeds that grew very luxuriantly on the lawn also disappeared, and an inexplicable desolate atmosphere suddenly enveloped the lawn in front of the teaching building.