It would still be very troublesome for Fang Hao and the three of them to walk while retreating, but if they stood on the pile output, it would be much easier, because the corpses piled up at the stairs could easily block the advance of the corpses, so Fang Hao and the three of them used the corpses of the zombies to block the momentum of the corpses' upward attack in less than half a minute.

The battle situation here is easy, but Yun Lei's side is in a bitter battle.

As Fang Hao expected, Yun Lei and the three of them encountered a fifth-level mutant zombie.

If it was before, with the peak strength of a fifth-level evolutionary of Yunlei, it would be very easy to deal with a fifth-level mutant zombie.

But now, the strength of these mutant zombies has generally increased greatly, and one-on-one Yun Lei can only fight with it equally. And this is still in the case of her holding a weapon, if she does not have a soft sword in her hand, I am afraid that she will be slightly defeated.

"The strength of the mutant zombies is getting stronger and stronger!" The fifth-level mutant zombie that Yun Lei encountered was still an iron-skinned zombie known for its defensive power, and the soft sword occasionally stabbed it, but it couldn't cause heavy damage to it.

Bao Sanpao and Liu Yun also had to deal with two other fourth-level mutant zombies, and when the three of them were fighting with these three mutant zombies, there were also several low-level mutant zombies next to them, and they were tied up and very uncomfortable.

To make it easier for them to show off their skills, they brought the zombies into a larger room and fought them.

Fang Hao heard that the three of them were fighting fiercely, and saw that the corpses at the staircase had been blocked by corpses, so he immediately rushed over with Zitong and Ye Xiaomin to support.

As soon as the three of them entered the room, they took out their rifles and opened fire on the two fourth-level mutant zombies.

With the addition of new forces, coupled with the firepower of the rifles in the hands of Fang Hao and the others, they quickly helped Bao Sanpao and Liu Yun to deal with these two fourth-level mutant zombies.

"You two shoot from the side with sniper rifles and help the Cloud City Lord kill this level 5 zombie!"

Zitong and Ye Xiaomin obeyed the order, took out a sniper rifle, and fired several shots at this fifth-level zombie, although only one or two shots hit the target, and they didn't hit the vital point, but they still created a few excellent opportunities for Yun Lei to attack, and dealt heavy blows to this fifth-level zombie one after another.

This fifth-level mutant zombie was covered in blood, and its hands and feet became inflexible, and when it saw that the situation was not good, it actually jumped out of the window, jumped out of the window, and escaped.

"Damn it!" Yun Lei quickly came to the window and looked downstairs, only to see the fifth-level zombie running away in the crowd of corpses, and disappeared in the corner of a building in a blink of an eye.

"Do you want to go upstairs?" Fang Hao asked.

Yun Lei nodded and said, "Let's continue to go up, this fifth-level mutant zombie should be the strongest one in this building, and there should be some fourth-level mutant zombies further up." ”

Several people continued to climb the stairs, and this time the resistance encountered was significantly smaller, and occasionally encountered one or two fourth-level mutant zombies, which were also easily killed by Yun Lei, and successively obtained several fifth-level crystal nuclei.

A group of six people rushed all the way to the top of the eighty-story building.

There were also hundreds of zombies on the roof, and after they cleared all these zombies, they sat down to rest for a while.

"It's a pity, that fifth-level mutant zombie escaped, otherwise the crystal nucleus harvested this time is enough for me to advance." Yun Lei was still haunted by the escape of the fifth-level mutant zombie.

"Rest a little longer, let's go to that building and have another look." Yun Lei said, pointing to a nearby building.

As a city lord, Yun Lei has felt that it has become more and more difficult to deal with high-level mutant zombies recently, and she does not allow this situation to continue, so she can only improve her strength as soon as possible.

It was easy not to come to Fengdu City, she had to scavenge enough high-grade crystal nuclei.

"What? Do you have any difficulties? Yun Lei keenly noticed that Fang Hao's face had changed, and hurriedly asked.

Fang Hao frowned and said, "I'm afraid today's battle will exceed your expectations. ”

"Why?"

When Yun Lei asked this, she was actually muttering in her heart, but she was blinded by the strong desire to advance, and the intuition she had always been proud of actually failed.

"It's coming!"

With Fang Hao's words, several people suddenly heard a dull roar coming from inside the building.

Although it was still far away, the roar beat like a heavy drumbeat in the hearts of everyone, and the hearts were very oppressed.

Yun Lei's face changed abruptly, the strength of this zombie was far beyond her.

She jumped to her feet: "Level 6 mutant zombie!" ”

She was about to regret dying, Fengdu City really didn't break in casually, she thought that as long as she didn't enter the city center, there should be no problem in fighting the autumn breeze on the periphery, but she didn't expect that it was so far away from the city center, and the sixth-level mutant zombies had already heard the news.

never imagined that she would be buried here today, and it also affected Fang Hao and the others.

Bao Sanpao and Liu Yun's faces instantly turned pale, and the sixth-level mutant zombies were almost certain to death for several of them.

Even if the six of them join forces, I'm afraid they won't be its enemies.

Compared with the two of them, Zitong and Ye Xiaomin are much calmer.

No matter when, as long as Fang Hao is there, they will not panic, they believe that no matter how dangerous it is, Fang Hao will always have a way.

At this time, Fang Hao also stood up and said to Yun Lei: "You wait here, I'll come when I go." ”

With that, he quickly ran downstairs.

Yun Lei was taken aback: "Why are you going?" You're going to die! ”

But in the blink of an eye, Fang Hao's figure had disappeared at the exit of the roof.

Fang Hao left, and there was no more news.

With a burst of roars, the sixth-level mutant zombie was about to reach the top of the building.

Bao Sanpao suddenly said angrily: "I didn't expect Fang Hao to be this kind of person, what kind of man is he who escaped from the battle!" ”

Zitong snorted coldly: "You are living the belly of a gentleman with the heart of a villain!" ”

After following Fang Hao for so long, Zitong has also learned a lot of new words from him, and he happened to use them today.

Yun Lei was speechless, whether Fang Hao escaped or not, it didn't play a decisive role in this battle, even if he really escaped, she would only feel glad for him, it was of course the best thing to die one less.

However, is it really that easy to escape from the hands of a sixth-level mutant zombie?

Just thinking so, I heard a "boom", and a wall at the exit of the roof collapsed, and out of the smoke and dust, a big fat and tall man came out.

"Big fat man!" Yun Lei couldn't help but exclaim.

The Big Fat Mutant Zombie, even if it is a low-level one, is very threatening, because it is one of the few mutant zombies with long-range attack means.

Seeing that this sixth-level mutant zombie turned out to be a big fat man, Bao Sanpao and Liu Yun suddenly felt like ashes, and they didn't even have the slightest intention to resist.