"It should be..." Hei Pi replied perfunctorily.

At the same time, with Chen Nuo's instructions, the life fire in the four glass boxes floated up instantly, and then flew towards the four big guys in front of him, disappearing when they were about to collide.

Seeing this, the robots such as Hei Pi subconsciously performed surprised.

"Why did this... fly?" Huolala's big head was full of surprise.

At the same time, with the grant of the fire of life, the two tanks and two fighter planes moved instantly, and then quickly turned into human form.

The tank's human figure was very thick, looking like a muscular man, and behind him, the tank's huge cannon stands there, which adds a sense of majesty.

As for the fighter, it was a humanoid robot that looked thinner than a tank. Its hands were wings like a knife, and behind it was a cannon barrel.

Obviously, the cannon is the cannon that fires electromagnetic cannon.

"Master!" They all knelt on one knee and shouted.

Chen Nuo nodded, while the robots such as Hei Pi were instantly uneasy.

"This..." The drone was full of surprise. It could feel the terrifying combat power on them.

After all, the cannon is scary at first sight...

As for the other robots, they were stunned and their expressions were a little serious.

"In the future, you are called GreenSi No. 1, GreenSi No. 2, Fighter 1, Fighter 2," Chen Nuo thought for a while and said.

Because the color of the tank is green, it is green.

Well, naming is that simple.

"Thank you, Master!" They responded one after another, then stood up, and then looked at the black skin and other robots in front of them.

"From the future, you will be teammates on the same front. If you have a task in the future, you will all help each other!" Chen Nuo said solemnly.

"Yes!" all the robots responded.

In response, Chen Nuo looked at Green Skin No. 1 and said:

"What is your ability after turning into Autobot? What are your attack methods?"

As soon as he finished speaking, the tank barrel behind GreenSkin One suddenly moved to his left shoulder, then rose, finally spread out, and the barrel was directly facing directly in front.

This scene was so scared that the drone flew backwards suddenly.

Hei Pi and Huolala became even more serious.

At this moment, Green Skin No. 1 looked at them and then replied:

"I have a lot of strength and can easily smash the house. Moreover, my defense is very strong and cannot be shaken by bullets. In the end, my cannon can fire a shell that easily breaks a building!"

Chen Nuo nodded: "Not bad."

Then, he looked at Fighter 1.

Without waiting for him to ask, Fighter One wisely turned into a combat form.

But the wings under its hands suddenly popped out, as sharp as a knife, and then the gun barrel behind it was facing the Green Skin No. 1 directly in front of it.

At the same time, some small gun barrels popped up on his shoulders.

Obviously, that was the barrel that fired the bullet.

Then, he saw it saying:

"I have eight bullet holes that can fire bullets, the wings of both hands are as sharp as a knife, and I can also fire electromagnetic cannons that easily destroy a building! The most important thing is that I am very fast and can burst out two hundred horsepower per second!"

Upon hearing this, not only Chen Nuo, but everyone was a little surprised.

This is all an attack method!

Far attack, close attack, and even speed.

This made them chill.

Such an Autobot is very scary!

"Yeah! Very good!" Chen Nuo nodded, and a rare smile appeared on his face.

After saying that, Chen Nuo said solemnly:

"Okay, take your battle form and get along well with them. In addition, without my orders, you must stay in the shelter and you can't go anywhere!"

After saying that, Chen Nuo walked out.

It's almost nine o'clock now, and he's hungry.

...

"There are still 15,355 upgrade points, which may be of great use." Chen Nuo sat on the sofa and pondered.

"System, bring out all the equipment you can heat the shelter." Chen Nuo ordered directly.

As he said that, he turned on the running instant noodles, then took a bite, then looked up at the light curtain in front of him.

"Greenhouse: The initial area is 20 square meters, the maximum temperature at which the initial heating is 20 degrees, and it takes ten points to upgrade to purchase!"

"Heater: The maximum temperature at which initial heat can be heated is ten degrees, and the range of heatable can be unlimited."

...

There are only two, but both of them have good results.

"I won't consider this for the time being, but the heater is not bad." Chen Nuo murmured.

"How many heaters can be purchased?" Chen Nuo asked.

Because, the heater details don't look like a device.

Furthermore, when you hear this name, you will know that it is not a device, but a machine.

That's why Chen Nuo asked like this.

"There is no limit on the number, but there can only be one heater per floor of the shelter." The system quickly replied.

Upon hearing this, Chen Nuo nodded and said:

"Buy five for me and put them in five levels of shelter."

"Ding, you spent fifty points to upgrade and purchased five heaters!"

"Ding, it's installed now!"

With the system's prompt sound, on the wall of the living room, a machine similar to an air conditioner but nearly twice the size of the air conditioner appeared out of thin air conditioner.

"The heater can be powered on and the host can be powered on independently." At this time, the system prompt sound appears.

"What is the maximum heating temperature that can be increased by upgrading the heater one step?" Chen Nuo asked.

"After every upgrade, the maximum heating temperature of the heater can be increased by ten degrees!" The system's answer made Chen Nuo silent for a moment.

The temperature will drop very quickly, so a heater is a must.

However, all five heaters need to be upgraded, and the upgrade point required is definitely huge.

"How many upgrade points do you need to upgrade a heater to level 10?" Chen Nuo asked.

“12770 upgrade points!”

The system's answer made Chen Nuo's face sank.

"Five ones are more than 60,000 upgrade points." He analyzed secretly.

When heating, you must heat it to 100 degrees. In this way, Chen Nuo's shelter is the warmest when winter comes.

That's why Chen Nuo asked this.

However, the upgrade point required to upgrade five heaters to level 10 is too high.

"I remember getting some heaters and stoves before..." Chen Nuo thought of something, and then after analysis during the meal, he ordered:

"System, upgrade the heater on the fourth floor to seven levels!"

"Ding, you consume 3170 upgrade points to increase the heater on the fourth floor to the eighth level, and the maximum heatable temperature of the heater from ten degrees to eighty degrees!"

"Host: Chen Nuo!"

"Sanctuary level: 9! (12,800 upgrade points are required for upgrade!)"

"Sanctuary equipment: Level 9 armored door, Level 3 water source station, Level 4 power station, Level 7 scientific research base, Level 3 automatic elevator, Level 3 breeding farm, Level 8 retreat room, Level 1 simulation practical room, Level 3 vehicle factory, heater!"
Chapter completed!