Although the student council and the robot army of the fourth group were very embarrassed by Li Chen's biochemical army, they were as easy as playing with these sea creatures, but in a few moments, they emptied a large area of the sea area where the two teams were located.

As the sea creatures were emptied, the faces of the two armies of machines were finally revealed to Team Six from the entrance to the Underground Sea.

On the side of the joint group of the student union, the group led by the group of advanced robots purchased from the sixth group, after they entered the underground sea, they spread out in a hemispherical shape, and then continued to advance, followed by a full four columns of magnetic storm robots, that is, there were as many as forty units.

The entire body of the Magnetic Storm Robot emits a blue arc of electricity, and even the shields outside the body of these Magnetic Storm Robots have arcs of electric arcs beating. Rendered the underground sea a dark blue.

"Boom~" These robots are not all, along with the continuous loud noise in the rock formations above the underground sea, with the overflow of billowing dust, a large number of rocks fell from the tunnel through which the robots passed and smashed into the underground sea, leaving a string of long bubbles in the underground sea.

"It is! War Bastion! A huge metal ball bombarded the water of the underground sea from the tunnel that had been enlarged by nearly twenty times, and the advance robots that had already spread out in a hemispherical shape in the underground sea were all pushed by the huge waves smashed by the huge metal ball and scattered more than ten meters away.

"The student union is so bold, it has quietly built a war fortress!" The other teams watching the battle looked in amazement at the circular fortress in the field.

It turned out that the reason why the student council was moving so slowly was not just because they were afraid of being trapped by the biochemical army of the sixth group, but because they were waiting for this behemoth to keep up with the pace of the large army.

"Good fellow, I said there was no response from the gold-eating fungus in the passage they opened at the beginning!" Li Chen was also taken aback when he saw this huge metal war fortress.

Naturally, the student council's army of robots did not open up another path to the underground sea, but they kept moving along the tunnels dug by the scout robots of each group in the early stage of the semi-finals.

These tunnels are naturally full of gold-eating bacteria from the sixth group, but Li Chen and the others only got feedback from the gold-eating bacteria from the robots in front, and there was no reaction in the back, obviously when the metal war fortress opened the tunnel, those gold-eating bacteria were directly buried, and the gold-eating bacteria could not touch the metal material and energy shield, so they naturally could not feedback the news to the base in time.

"Little Lizi, the robot team of the fourth group has also lost the feedback of the gold-eating fungus!" Skinny Monkey Road.

"It doesn't matter, the fourth group is mainly using the robot attack team to play this game, and it doesn't be strange that they even have two more war fortresses than the student union." Li Chen was only slightly surprised by the productivity of the student union, and he did not express concern about the offensive of the two squads.

In fact, Li Chen is no stranger to this kind of thing like a war fortress, when he was on Earth, he played a very classic old game, and he saw the prototype of this kind of thing in it.

In fact, the sea urchin base he developed at the beginning was partly derived from the war fortress. The general design of the War Fortress and Sea Urchin Base was based on the idea of a mobile arsenal.

However, compared to the sea urchin base, the war fortress is also dozens of times smaller. Like the sea urchin base, the war fortress is divided into two layers of inner shell, and there are a large number of giant tungsten steel balls as rolling bearings between the two layers to facilitate the movement and stability of the war fortress.

At this point, the sea urchin base is much more advanced than the war fortress, because the sea urchin base can use high energy power, it is completely filled with energy matter between the two layers of shells, both the shock absorption effect and the safety are much higher.

The War Fortress, which is twenty meters in diameter, is completely a huge metal ball when it is not attacked, and it is inconspicuous. But who of the people present is not knowledgeable!? As soon as this war fortress appeared, they knew that the sixth group was in trouble.

This is just the team of the student council, and the robot team of the fourth group still emerges unhurriedly from the bottom of the underground sea, and then fans down the bottom of the sea in the direction of the crater.

Judging from the number of robots in their body, it is more than double that of the student union. Although Sakuragi Ji has devoted himself to developing their base, he has never forgotten that the production of various styles of high-end robots is his true secret to invincibility.

This time, the fourth group did not carry large siege equipment such as siege beasts and war fortresses, and the number of robots was twice as large as that of the student union, which was enough for them to have a sufficient say in this battle.

After the fourth team all came out of the seabed, the passage drilled by the robots was automatically blocked by the sand and gravel on the seabed, forming an underwater vortex with a diameter of more than three meters on the seabed.

The swirling water swirls between the robots of the fourth group, and the advanced robot teams let the powerful currents sweep through their protective shields.

The powerful currents of the water slammed all the sea creatures that had surrounded the fourth group of robots into the passage.

Li Chen's modified marine creatures are all luminescent jellyfish and thistles of this type of mollusk, under the impact of this menacing current, it is naturally impossible to stabilize their bodies, close to the water vortex around one or two hundred meters, within a moment, the sea creatures that had already surrounded the fourth group of robot armies were completely emptied.

"It's a beautiful hand!" The 10th group is ready to finish at the bottom of this game and is now watching the other groups perform wholeheartedly.

"Sakuragi has already figured out the sixth group, and knows the weaknesses of these sea creatures, and it is simply effortless to clear the first layer of the sixth group!" Said the person in the ninth group who belongs to the volunteer area.

Although the other groups are allied with the sixth group, they do not want any team to win with absolute crushing results, they still hope that the student union joint group and the fourth group can gain something, and not let the points of the sixth group pull everyone too far.

"Nothing special?" Li Chen and Alyssa were a little surprised when they saw the attack force of the fourth group, could Sakuragi be so superficial and think that there were enough of them to win?

"It's better not to underestimate this guy, the two rounds he failed were just too careless, be careful of him at all times!" Lin Zhi saw that Li Chen and Alyssa were a little contemptuous, and Sakuragi Ji couldn't help but remind.

Li Chen naturally understood this, and finally began to arrange the defense of the base after the armies of the two groups were all overwhelmed.

The base towers of the sixth group in the underground sea slowly rose from the bottom of the sea, starting from the area covered in volcanic ash and extending outward for two hundred meters, and there was a base tower rising every twenty meters, and each base tower was connected by a dark blue arc between them, and the entire crater was surrounded.

A huge black volcano seems to be placed on a blue disk, waiting for the arrival of these two armies of robots like a huge chimney in the dark underground sea.

......