Looking at the strange corpses that were quickly rushing towards the city wall, Wang Chen couldn't do anything at this time except to do his best to clean up the second-order alien corpses that climbed the fastest and prevent the strange corpses from climbing the city wall as much as possible.

Wang Chen watched the alien corpses pouring out of the jungle like a tide to join the pile of alien corpses in the siege, he couldn't help but feel a sense of weakness, his personal ability was too small in this situation.

And at this time, he realized that his long-range group damage ability was too weak, and his only group damage skill, multiple shooting, needed to master his skills to be able to exert his power.

"Is there a way for No. 4 to quickly master the multi-shot skill?" In the end, Wang Chen still asked for help from the only super brain No. 4 who can help him now, hoping that No. 4 can surprise him a little.

"After the host consumes one million experience points, the Super Brain has an additional exchange function, and the host can consume experience points to improve their abilities. The host can now spend 20,000 XP in exchange for a passive skill with Multi Arrow Mastery to help you quickly master multiple shots. Number 4 did not disappoint him, and Number 4 quickly responded in his mind.

"So cheap? Then hurry up and exchange it for me! Why didn't you say this earlier? I knew it was so cheap, I exchanged it early in the morning. Wang Chen said depressedly after listening to No. 4's words.

"The redemption is complete, please check the skill introduction by yourself." No. 4 automatically filtered out Wang Chen's complaints.

Multiple Arrow Mastery (Level 1), a passive skill that allows the host to control the shooting skills of one more arrow, which can be upgraded.

"What does number 4 mean? What does it mean to control one more? Didn't it just give me complete control over the multi-shot technique? After Wang Chen read the skill introduction, he suddenly had a feeling that he had been cheated again.

"This kind of behavior that directly changes the law of super brains costs a lot of experience points, and as the difficulty of the skill increases, the more experience points will be consumed, and each additional arrow control in the future will cost double the experience points." Number 4 explained.

"That means I have to spend 140,000 XP to master the shooting skills of four arrows?" Wang Chen asked after a quick calculation in his heart.

"Indeed!"

"Forget it, help me exchange it, I can only let you cheat now, anyway, it's useless to keep the experience points now, it's better to directly convert them into combat effectiveness." Now in this situation, Wang Chen can't think of any way except to accept his fate.

Multiple arrow control (level 3), passive skill, so that the host can control the shooting skills of three more arrows, and the host can be upgraded again after controlling the ability to control objects.

"Huh? Can you still upgrade? Wang Chen thought that the highest level of this skill was only level 3~, but he didn't expect that he would be able to continue to upgrade.

"The maximum level of this skill is level nine, but after level four, it needs to cooperate with the host's ability to control objects to be effective." No. 4 came out at the right time to solve his doubts.

"The highest level of nine means that I can shoot ten arrows at a time, so then I will be really awesome. But for now, let's see if the hundreds of thousands of experience points are worth it! ”

Wang Chen's right hand backhand pulled out four arrows from the quiver behind his back, stuck between the fingers of the five fingers, and then put the arrows on the bowstring of the chasing lightning to pull the chasing electric away, and at the same time used the control to compress the bow arm.

After Wang Chen pulled the chasing lightning to the maximum extent he could pull away, he aimed at the four second-order alien corpses that were quickly climbing the city wall with the help of their similar bodies.

Multi Shot!

A wonderful thing happened, the four arrows flew according to the target that Wang Chen was aiming at as if they had eyes, and the four arrows hit the right eye of the four alien corpses without missing a beat, killing them all, and their corpses rushed upwards for a distance under the drive of inertia, and then fell from the air.

"Big brother is amazing!" Jiang Weijia looked at Wang Chen with a look of adoration.

"Good boy, it's really amazing!" Chen Dayu couldn't help but give Wang Chen a thumbs up.

"I can't believe you still have this hand!" Jiang Weiyong looked at Wang Chen with a shocked expression

"Huh! On a whim, it's just a super-level play! Don't praise me, the alien corpses are coming up again. The praise of the people around made Wang Chen, who had not completely shaken off the breath of **, a little embarrassed, so he could only quickly divert everyone's attention.

After the attention of the surrounding people was once again attracted by the strange corpses besieging the city, Wang Chen began his solo performance again.

It turns out that although the boss of Super Brain No. 4 is an out-and-out profiteer, what he produces is really worth the money.

As Wang Chen became more comfortable shooting multiple arrows, his speed at hunting alien corpses became faster and faster, and after an hour, he had gained nearly 100,000 experience points.

Moreover, because he was specifically looking for the key support points of the first-order and second-order alien corpses and the alien corpse piles that climbed faster, the two alien corpse piles near him collapsed several times on a small scale due to the lack of first-order and second-order alien corpses as the main assault force, and they were never able to advance to within ten meters of the top of the city wall.

In other words, Wang Chen almost dragged it with his own strength, and the fierce attack of the two strange corpses and different corpses.

However, he could only delay the offensive of these two corpse piles, and he could not make a greater contribution, and after all, he was flesh and blood, and it was impossible for him to be as tireless as the corpses, and after holding on for another half an hour, Wang Chen had to ask Chen Dayu to transfer back the soldiers who saw that he could drag the offensive of the corpse pile, and went to other places to help defend.

After the soldiers who respected him came back to take over the defense area, Wang Chen shook his right hand, which was already a little weak, and retreated to the side to rest for a while.

"Wang Chen, these are five bottles of intermediate physical recovery elixir, you drink one bottle to recover your physical strength first, you should be able to restore your body to the best state after twenty minutes, and then I hope you can help continue to drag down the offensive of these two corpse piles." Chen Dayu said with a sincere face as he handed five thumb-sized red elixirs to Wang Chen.

"Do your best!" Wang Chen took the potion, raised his head and drank a bottle and said solemnly.

This is obviously not the time to only care about yourself, if the base is breached, everyone here will be overwhelmed by the vast sea of corpses. Even if Chen Dayu doesn't say it, he will do his best to help defend the city before the situation develops to the point where it is uncontrollable.

Without Wang Chen's targeted suppression, the soldiers were obviously unable to deal with the two corpse piles, and because of the return defense of these soldiers, the defense of several defense points next to them was more difficult, but fortunately, at this time, the base government ~ government issued an order to use the burn bomb again after recovering the permission to use the burn bomb.

After using the Molten Bomb, the people on the city wall finally got a chance to breathe, most of them lay directly on the ground, and in the two hours that the base government ~ government took back the permission to use the Molten Bomb, everyone on the city wall did not stop, and they were busy trying to prevent the corpses from climbing the city wall.

Fortunately, thanks to this concerted effort, although there were some casualties, in the end, not a single corpse was allowed to climb the city wall.