Chapter 57

Seeing the black ball in the head of the second-level zombie, Lin Feng was not annoyed like ordinary hunters, but showed a joyful expression.

The probability of the black ball being generated in the brain of the second-level zombie is extremely low. Lin Feng doesn't know how it was formed, and also doesn't know if the black ball has other uses. At least some people Lin Feng met before, the black ball It's all useless to them.

But it is different for Lin Feng, the black ball can form a super energy exchange system in the supermarket through the experiment done before. The super energy exchange system is only at the first level now, whether the black ball can upgrade the super energy exchange system still needs to be tested.

It's not that Lin Feng hadn't thought about buying the black ball before, but after Xian Zhong thought about it, he rejected it again.

Black balls are known to be useless. People were very frustrated when they got the black balls by killing the second-level zombies very hard. And at this time, if Lin Feng buys a large number of black balls, it means that they are useful. In this way, someone will definitely study the matter of black balls, and Lin Feng can't explain other uses of black balls. Come on, in order to avoid unnecessary trouble, Lin Feng still gave up this idea.

Right now a black ball appeared, Lin Feng picked up the ball and entered the supermarket. Coming to the front of the super energy exchange system, Lin Feng hesitated for a while, and put the black ball into the recovery port of the super energy exchange system.

A few seconds passed, and in Lin Feng's anxious mood, a progress bar appeared on the big screen on the super energy exchange system again, and the progress of the progress bar showed 1 percent.

It really works!

Sure enough, just as Lin Feng thought, the black ball in the brain of the second-level zombie can really upgrade the super energy exchange system in the supermarket. As for what the upgraded super energy exchange system will look like, Lin Feng has some expectations. The things in the super energy exchange system that have not been upgraded are already so powerful, and the items that can be exchanged in the upgraded super energy exchange system may exceed one level.

It's just that one black ball can only add one percent to the upgrade progress bar of the super energy exchange system, that is to say, a full hundred black balls are needed to upgrade the super energy exchange system.

The probability of the black ball being generated among the second-level zombies is very small. It will take until a hundred upgrades are collected, and I don't know if it will be the year of the monkey. Thinking of this, Lin Feng is a little frustrated.

Putting away his mixed feelings of joy and sorrow, Lin Feng returned to the car and continued heading towards Tianheng Mountain.

As the distance from the Tianheng Mountains got closer, Lin Feng encountered more and more zombies. When he was one kilometer away from the Tianheng Mountains, Lin Feng had already consumed nearly a thousand bullets. Even the first-level zombies eliminated reached as many as eighty.

Lin Feng did not take out the white crystals from the brains of these first-level zombies. Now Lin Feng has more than 100,000 white crystals on hand, and now he has no time to earn white crystals from the brains of these first-level zombies one by one. Lin Feng would never have wasted time if he hadn't met that second-level zombie before to familiarize himself with the sword technique.

During this period, Lin Feng also encountered three second-level zombies. This time Lin Feng did not deal with them slowly, but quickly dealt with the three second-level zombies. After killing these second-level zombies, Lin Feng got three light yellow crystals from their heads.

Lin Feng, a high-level zombie, didn't know that in this apocalyptic world, it was well known that killing a level-one zombie could get white crystals. And killing the second-level zombies, except for a small chance to get black balls, most of them get light yellow crystals from the brains of the second-level zombies. The energy in the light yellow crystal is ten times that of the white crystal, not only because of the amount of energy, but also in terms of quality, the energy concentration of the light yellow crystal is several times higher than that of the white crystal.

The third-level zombies have deep yellow crystals in their brains, and their energy and concentration are several times higher than the light-yellow crystals of the second-level zombies. And the brains of the fourth-level zombies are green pills, the fourth-level zombies are light green, and the fifth-level zombies are dark green. As for what effect it has, it is not known.

In the future, not to mention Lin Feng, it is estimated that those level 7 practitioners have never seen it. According to legend, a medium-to-large base can be captured with just a few losses. This kind of powerful zombie is not something that can be seen casually.

It is said that zombies of the same level are also strong or weak. Just like the two level 4 zombies I met before, the female level 4 zombie I met first was obviously not as good as the male level 4 zombie that I killed together with Dong Wu later. sharp.

The degree of evolution of zombies is different, and the strength will naturally be different. It's the same as human beings. For example, people who are also level 4 cultivators have different abilities.

Seeing that there are more and more zombies in front, the car is no longer suitable for driving forward. Finding a secluded place, parked the car, and Lin Feng was about to walk into the mountain.

Fortunately, the thermal weapons and bullets purchased by Lin Feng at the Nanshan base were sufficient. Under unknown circumstances, it is necessary to reserve more ammunition. Lin Feng observed through binoculars in the kilometer approaching the Tianheng Mountains, and there were at least 300 zombies scattered in front of him. These zombies all came out of the narrow entrance of Tianheng Mountain. Tianheng Mountain is steep and the entrance and exit are very narrow. Zombies themselves have no intelligence, walking randomly, forming a dense pile of zombies at the entrance.

He took out a six-barreled machine gun from the doomsday watch. This is the most powerful gun that can be bought in the weapon shop of Nanshan Base. It cost Lin Feng 1,000 white crystals.

The six-barreled machine gun has a bullet capacity of 200 rounds, and the price of a single bullet is one round of white crystal. If ordinary people use this six-barreled machine gun, they will have to pay for it. One bullet may not be able to accurately kill a first-level zombie, but the price is equivalent to the white crystal obtained by killing a first-level zombie.

Except for the pair of Lin Feng, of course, who set up a six-barreled machine gun, stuck the whole plate of bullets on the machine gun, aimed at the nearest zombie, and Lin Feng pulled the trigger.

The huge fire snake roared out of the barrel of the six-barreled machine gun, and rushed towards the group of zombies on the opposite side, as if trying to tear everything apart.

The rate of fire and power of the machine gun are very powerful. Many times, after a bullet penetrates the body of the zombie in front, it directly punches a big hole in the body of the zombie. After passing through the body of the zombie in front, its power remained undiminished, and it continued to fly towards the zombie in the back.

With a whole plate of 200 rounds, under Lin Feng's not very precise marksmanship, he actually shot and killed more than fifty zombies, including several first-class zombies. The size of the first-level zombies is obviously larger than that of ordinary zombies, which is very easy to identify.

Just when Lin Feng secretly praised the power of the six-barreled machine gun, a thin zombie suddenly jumped out from the opposite side. Unlike other zombies, this zombie landed on all fours and ran towards Lin Feng like an animal. Come over, that speed is much faster than the second-level zombies.

Level 3 zombies!

Lin Feng was startled when he saw the zombie running more than a hundred meters away from him.