Relying on good physical speed and flexible reactions, Luo Chen and Zhao Youyou kept tearing apart the formation of the 'Rat Corpse Brother' in the not very wide space on the rooftop, severing their connection with each other.

As soon as a large 'Rat Corpse Brother' breaks away from his companions, he will be hunted down by them immediately.

Poof—

Blood was like a fountain, and another large 'Rat Corpse Brother' collapsed.

Luo Chen withdrew his Mo knife and swung it back, the wide blade splitting the medium-sized 'Rat Corpse Brother' who was sneaking up behind him at the other end.

The size of a bull is rated as a large size, and the size of a wild boar is counted as a medium size.

Luo Chen and Zhao Youyou cooperated with each other and successfully killed 4 'Rat Corpse Brothers' the size of a bull, and 9 others the size of the wild boar.

Of course, it was mainly Luo Chen's killer, and Zhao Youyou assisted in cleaning up the obstacles.

Half an hour later—

The number of these 'rat corpses' on the rooftop is nearly half of what it was at the beginning. There are less than 20 of them the size of wild boars, 5 of the largest ones the size of bulls, and more than 200 of the most ordinary miscellaneous soldiers.

But Luo Chen's good fortune also ended here.

The larger the 'Rat Corpse Brother', the higher the degree of mutation and the higher the IQ. After such a long time and the death of so many people of the same kind, it is naturally impossible not to be unaware of the problem, and it is impossible to be led by the nose all the time.

"Aang!"

A large 'Rat Corpse Brother' roared, and all the 'Rat Corpse Brothers' immediately gave up attacking Luo Chen and Zhao Youyou, and turned around and gathered towards the large 'Rat Corpse Brothers'.

The entire roof is more than 100 meters long and 12 meters wide, adding up to just over 1,000 square meters. And the position of Luo Chen and the two at this time was at the end of the rectangle. At this point, all the 'Rat Corpse Brothers' were ordered to assemble towards the middle of the rooftop.

The 'Rat Corpse Brothers' lined up the width of more than ten meters and blocked it, and under the leadership of the remaining large 'Rat Corpse Brothers', they rushed towards Luo Chen and Zhao Youyou at a ferocious speed.

The menacing formation was no less than the charge of the armored troops.

"Oops..."

Luo Chen's face was not very good-looking, what he was most afraid of was that these tricky medium and large 'rat corpse brothers' would gather together. Facing one or two medium and large 'Rat Corpse Brothers' alone, he is still sure, but if he falls into a group fight, no matter how thick his blood bar is, it will not be enough for the other party to consume.

In the small space of the rooftop, once the numerical superiority of the 'Rat Corpse Brother' is revealed, it will definitely be crushing, and Luo Chen and they will not even be able to escape.

The 'Rat Corpse Brothers' continued to compress the distance space, and seeing that it was close to less than twenty meters away, Luo Chen and Zhao Youyou retreated again and again, reaching the edge of the rooftop.

Zhao Youyou suddenly said to Luo Chen: "Luo Chen, jump downstairs!" ”

Luo Chen was stunned when he heard this, and then looked downstairs, his face twitched.

The method is indeed the way, but at a height of more than 20 meters, what is the concept of his 100 catties falling, I am afraid that if he does not die, he will be disabled on the spot, right?

If you're unlucky, hit your head first......

"No, there's still a way to go!" Luo Chen looked at the ground below him.

Zhao Youyou noticed his gaze, and a sudden color quickly flashed in his eyes.

Luo Chen didn't have time to explain, he took a deep breath, picked up the Mo knife, his waist and arm were charged, and the power suddenly exploded, and the heavy Mo knife slammed into the ground.

Rumble!

The ground shook and rubble flew sideways.

Under Luo Chen's hard blow, he smashed the floor slab mixed with reinforced concrete and concave a big hole, and even the center position had been destroyed to the point that only the steel bars remained.

Seeing that the floor slabs were still connected by steel bars, but they still hadn't smashed into a hole enough for people to fall into, Luo Chen picked up the Mo knife again and smashed it down.

Rumble! Rumble! Rumble!

Four heavy blows in a row, just when the distance between the 'Rat Corpse Brothers' group was less than 10 meters, and Zhao Youyou was desperately preparing, Luo Chen finally smashed through the floor slab, forming a hole that was enough for people to pass through.

"Go down!"

Luo Chen didn't talk nonsense, first threw the backpack behind him into it, and then jumped down and fell to the fifth floor. Zhao Youyou's movements were not slow, and he also took off the backpack behind him and threw it in, following closely.

As soon as the two of them landed, the hole above was instantly covered by a black shadow, and then in just two breaths, one by one the ordinary-sized 'rat corpse brothers' scrambled to jump down.

"Yoyo, give me a knife!"

Luo Chen pierced the Mo knife that could not be used in this narrow space into the ground, and reached out to take a machete from Zhao Youyou: "You go and put the backpack away, don't wait for it to be damaged, I'll come here first!" ”

Zhao Youyou habitually listened to the other party's words, nodded and picked up the two backpacks on the ground, then turned around and entered a room and placed them in the corner.

Luo Chen began to kill the 'Rat Corpse Brother' who fell, scoring points one by one.

As he became more comfortable with his body's strength, the machete was like a toy in his hands, and the speed of killing became faster and faster.

And those huge 'rat corpse brothers' couldn't get down because the hole was too small, so they could only roar helplessly, and finally turned around and rushed down the corridor again.

When those large 'Rat Corpse Brothers' rushed down to the fifth floor, Luo Chen had already harvested more than thirty points. His face was cold, and he turned his head and walked towards the large 'Rat Corpse Brother' who rushed towards him, and said, "I'll leave it to you later." ”

Zhao Youyou nodded, a trace of worry flashed in his golden pupils.

However, she also knew that since the other party had made a decision, all she could do was to let the other party have no worries.

Her face was indifferent, even if she only had a machete left in her hand, she was still easy to deal with these ordinary 'rat corpse brothers'.

What's more, due to the size of the hole, no matter how many ordinary 'rat corpse brothers' there are, they can only fall down one after another and send them to death.

The space in the corridor, which was less than two meters wide, was not enough for Luo Chen's Mo knife to be used, and he could only hold the Z8 machete that he had given away when he bought the booster. After all, it is also made of special metals, and Luo Chen can only expect it to be as reliable as possible at this time.

But this narrow space also limits the numerical advantage of these large 'rat corpse brothers'. The passage is not wide, and it cannot accommodate two large 'rat corpse brothers' to assault at the same time. He disappeared from me, and Luo Chen's pressure was suddenly greatly reduced.

"Die!"

Facing the oncoming fierce 'Rat Corpse Brother', Luo Chen did not flinch, and rushed forward, just when the two sides were about to make contact, Luo Chen jumped up.

Luo Chen's body was like lightning, he calculated the timing, clenched the machete with both hands, and accurately stabbed into the eyeballs of the hideous head. Then, under the strong mutual impact of the two sides, the blade more than 70 centimeters long easily pierced the head of the large 'Rat Corpse Brother'.

Rumble!

The large 'Rat Corpse Brother' was killed instantly, but the huge body still collided with Luo Chen with a terrifying impact.

When the narrow road meets, the brave wins.

Luo Chen's blow just now was completely desperate, and he didn't leave the slightest room for it.

Against such a large creature, a short and light machete is definitely not as powerful as a long and heavy weapon like the Mo knife.

This made the danger that Luo Chen faced very terrifying.

Luo Chen's body flew upside down. The corpse of the large 'Rat Corpse Brother' slammed into the side wall, shattering the wall and then the massive body motionless.

"Luo Chen!"

Zhao Youyou, who was slashing and killing the ordinary 'Rat Corpse Brother', caught a glimpse of this scene out of the corner of his eye, his heart twitched, and his little face, which had never fluctuated much, was rarely panicked.

"Ahem—"

"I'm fine... Cough...... Leave me alone. Luo Chen waved at her.

Zhao Youyou was skeptical, but when she saw that Luo Chen stood up quickly, it really didn't look like she was seriously injured, so she put down her mind and concentrated on dealing with those ordinary 'rat corpse brothers'.

Luo Chen didn't lie to Zhao Youyou.

Although he vomited blood in his mouth, and seven or eight ribs were broken in his chest and abdomen in an instant under the impact just now, there was no doubt that his internal organs must have been traumatized.

However, the injury was much lighter than he expected.

Yes, the consequences of such a serious injury were all within his expectations.

The reason why he said that it was okay was because with the heat flowing from inside his body, he could clearly feel that his injuries were healing quickly.

Luo Chen dared to play with his life like this, because he remembered that in the original book, Bai Xiaofei showed an amazing self-healing ability after using the enhancement mechanism once, and after using the enhancement agent twice, his body was pierced back and forth and could not die.

Luo Chen also bet on the self-healing power of his body that had been strengthened three times.

Now, it seems, he was right.

In just a few seconds, the pain inside the body quickly disappeared.

At this time, the other large 'Rat Corpse Brothers' also rushed down one after another, and another 'Rat Corpse Brother' with a body size that was not much different from the one just now rushed over angrily.

Luo Chen reached out to wipe the blood from the corner of his lips and grinned.

He had always calculated in his heart that this most difficult large-sized 'Rat Corpse Brother' had only nine heads at the beginning, and after removing the one he had just sacrificed his life to kill, there were still four left.

As long as you kill the remaining four heads first, the rest is not to be feared.

He gripped his machete and strode forward, then faster and faster!

"Kill!"

Poof—

For the rest of the time, Luo Chen relied on his body's ability to heal itself at high speed, completely let go of his worries, and completely fought and killed in a lifeless way.

Except for the need to take care of the head and heart, it is almost impossible to attack.

If you don't have a defense, you have to be faster, more accurate, and more crazy to kill the opponent one step ahead.

That kind of tragic style, even Zhao Youyou shuddered when he watched it from afar.

An hour later - the killing is over.

The entire corridor was covered with scarlet blood, and the corpses of the 'Rat Corpse Brother' covered almost the entire corridor, just like a Hollywood horror movie set.

The air was filled with a dizzying, stench of blood.

Luo Chen and Zhao Youyou each sat down against the wall, both of them seemed to have been fished out of a pool of blood, red liquid kept dripping, and they were covered in plasma.

The difference is that most of the blood on Zhao Youyou's body is 'Brother Rat Corpse'. And a large part of Luo Chen's blood is his own.

From the degree of damage to the clothes on his body, you can imagine how tragic the tearing he was just now, the upper thigh of his pants, the three cuts neatly from top to bottom, 30 cm long, can vaguely see the flesh and blood in it.

The upper body clothes can even be called strips of cloth, and the blood marks on the bones are daunting, not to mention the invisible organs and bones inside the body, I don't know how much trauma has been suffered.

Fortunately, the wounds on the surface of Luo Chen's body had automatically stopped bleeding, and as the painful and itchy sensations everywhere around him entered his brain, he also knew that his injuries were rapidly healing on their own.

Zhao Youyou propped up his body at this time, his whole body was steaming, and his muscles twitched slightly. She staggered into a room, and after a moment pulled out two backpacks from inside. This is what they were afraid of being damaged during the battle just now, so they specially threw it inside.

She took out a metal box from her backpack, opened the two syringes, took out an inhibitor, and injected it into her heart. There is a suppression on the rooftop that has no chance to take it down, so you can only use another set first.

Luo Chen took his backpack and opened it to see that the contents were safe, especially the 'God Genes' that were safe and sound, and he couldn't help but breathe a sigh of relief.

The spirit was detached from the fierce battle state, Luo Chen's mentality slowly relaxed, waiting for the time for his body to heal itself, he glanced at Zhao Youyou, who was resting with his eyes closed after being injected with inhibitors, and guessed that the other party's state recovered faster than himself.

He took advantage of this free time to take a look at his experience points.

Kill from start to finish, the large 'Rat Corpse Brother' has nine heads, and you get 180 experience points. Medium 'Rat Corpse Brother' has 33 heads and 330 experience points. Ordinary 'Rat Corpse Brother', there are 236 dead in his hands, and he gets 236 experience points.

With the addition of the original accumulated 161 experience points, a total of 907 experience points.

Suddenly—

"Yoyo, did you hear anything?"

Luo Chen's expression suddenly froze, and he looked at Zhao Youyou with a frown.

Zhao Youyou opened his eyes, was stunned for a moment, and looked at Luo Chen.

Suddenly, she seemed to hear something. His face changed slightly, and he quickly got up and walked to a room, looking downstairs through the window, and his little face instantly turned pale.

Luo Chen had already hurried to her side at this time, and also looked down through the window, his pupils shrank suddenly, and then he took a deep breath.

The number of rat-like mutants is far more than the number of 'rat corpse brothers' that are several times greater than just now.

Still too optimistic. Luo Chen, who originally thought that he would kill all of them and be unharmed in a short period of time, kept sinking his heart.

God doesn't seem to want him to complete this trial comfortably, or rather, he doesn't want to give him a chance to complete it at all.

At this moment, there are still six hours before he leaves this world.

"Only the 'Gene of God' can be used......"