Once Human: How To Get Rebecca Deviant

Each deviant you are going to encounter during your journey in Once Human is special, and they have a lot of things to offer. This is why, it is important to get as many deviants as you can, unlock the isolated securement silo expansions, and place them all around your base. One of the newest deviants in the game, Rebecca, has a very unique but also extremely useful ability. This deviant actually summons Mitsuko to play piano in the base and increase the mood of other deviants. In this guide, we are going to take a look at how to get Rebecca deviant in Once Human and get a little help from Mitsuko around the base.

How To Get Rebecca Deviant

Having the chance to summon Mitsuko in your base is not going to be an easy job. Thus, you are going to need to complete the Lea Research Lab and face different kinds of powerful bosses around the area to get your reward.

The Lea Research Lab is recommended to play with 4 players, and it has a Level 60 ranking. What makes it different from other areas in the game is that you will encounter more than one boss in this area, along with mutated enemies walking all around the lab.

So, make sure to take a lot of food, water, health supplies, and most importantly ammo with you. If you are playing it with two or three people, make sure to bring even more of these items to secure your survival.

SIDE NOTE: We have a complete guide for all Deviant locations in Once Human, make sure to check it out as well!

Starting the Lab: First Challenge

At the beginning of the lab, the first challenge you are going to face will be the Glutton enemy. You might have already seen that ugly giant around the map for the past couple of days, and we are sorry to inform you that it is coming for you in this area as well.

When you are inside, you can try to stay near the filtration and shoot the enemy from that point. Defeating this enemy is all about focusing on its weak points, and if you have strong weapons, it is not going to be very difficult. If you manage to defeat it, the soul of Glutton will go inside the glass unit on the right. After that, you will have a chance to secure it.

Second Challenge: Dr. Manheim Boss

Now, you are not going to have any trouble finding your way in the lab, all you need to do is follow the path. When you do that after defeating the Glutton enemy, you will come to the room with Dr. Manheim boss inside. This one is a Level 60 Great One, and it has a couple of phases. So be extra careful with dealing with it.

During the first phase, you need to attack the boss until he gets immune and reaches the second phase. Until it happens, Dr. Manheim will summon five Gluttons. You will need to repeat what you did in the first challenge and put the correct Deviants into the matching containers. However, there will be other small mutated enemies trying to attack you as well. So, be careful with them too.

As you shoot the Gluttons around the area, Dr. Manheim will lose health points. When its health reaches below 50% health, it will become immune. Keep doing the securement process to bring its shield down. Remember, the boss has an AoE skill; he will slam the ground, and the waves will drain your HP, so you must either jump or hide behind a structure.

Once you defeat Dr. Manheim, you will have a chance to get the Rebecca Deviant. If it does not drop the deviant, you can try to exit and repeat these steps, or you can move on to the next boss.

Final Boss: Mother of Life

Now, exiting and repeating the steps might be easier than facing the final boss of the Lea Research Lab. Yet, since you are already there, we think that it makes more sense to complete the lab rather than leave. The final boss in this area is named Mother of Life, and it also has a chance to drop the Rebecca Deviant for you.

• When you hit the boss’s HP two bars, the fire and ice cubes will come into action.
• The disciple monsters will arrive near the door and sprinkle stardust. You must use the stardust to eliminate the spores that appear in the region.
• The boss will get immune.
• Once all four securement tubes are full of deviants, you can resume damaging the boss.
• In the final two bars, the boss will regain immunity. As a result, you must repeat the process, this time securing the deviant in the security tube.

The boss then becomes immune, and it takes a combination of past encounter elements to break the shield. Defeat disciples to get Stardust Crystals. Throw the crystals at the Spore piles (depending on the color) to create polarized deviants with matching shields.

After defeating Mother of Life, you are going to have a chance to get Rebecca Deviant. If you did not get it from Dr. Manheim, you will probably get it from this one. If it still does not appear, you will need to repeat the steps.

How to Use Rebecca Deviant

Deviants’ moods affect their performance in a great way. Therefore, Rebecca Deviant will help you a lot. All you need to use this deviant is to put it into the Isolated Securement Unit and put a piano in your base.

While the Rebecca deviant will boost other deviants’ moods, someone needs to boost its mood as well. In order to boost this deviant’s mood, you need to put green lights, toys, or plant flowers around its securement unit. Once the deviant has enough mood and strength, it will leave its unit and start playing piano for other deviants.

This is how to get Rebecca Deviant in Once Human. Having the ability to bring Mitsuko into your base is a really unique skill, so do not miss this chance. If you are looking for an easy-to-get deviant after this one, we recommend you to get Pup Buddy Deviant as well.