Pursuers in the Sewers | Walkthrough LEGO Batman 3 Guide

Last update: 11 May 2016

The first mission starts with two characters: Batman and Robin. First, look around the room you are in and learn the controls. As soon as you do that, start smashing objects made of LEGO bricks. You will get points in return, thus improving your mission score (more information about the points can be found in the chapter General tips).

Jump at the platforms, as shown in the picture. In order to do this, you have to approach the first platform and press the interact button. When you are on the platform, jump, collecting bricks on the way. Approach the lever at the end of the second platform and press the interact button to open the gate.

Once you manage to open the water-gate, jump down and start smashing the objects that were previously flooded.

As soon as you destroy the objects and collect points, head left, and build a machine (the interact button). More information about building objects can be found in the chapter General tips).

Once you have built the machine switch characters to Robin (change suit button) and collect the token. This unlocks Robin's suit, giving you the ability to collect important bricks and walk through toxic areas.

While playing as Robin look around the room and start collecting the bricks lying on the floor (hold the interact button).

Once you collect all 25 bricks, approach the machine and press the interact button. The machine will use the bricks you gathered to build a cannon, which will help you get to the next part of this location. When the cannon is ready, approach it and press the interact button in order to set the direction. Once the barricade is down, switch characters to Batman and collect the token there.

Collecting the token will unlock another Batman's suit. Approach the wall and press the interact button, in order to use his special ability. After you do that, press again the interact button to destroy the wall. Now you have to arrange the pipes to allow water to flow through.

Rearrange the bricks so to create a water flow as shown in the picture above. Do not forget about unblocking the bricks at both ends of the flow.

Move to the next part of the location, smashing all brick-made objects on the way (the only thing you cannot smash is the golden toilet), until you get to the place shown in the picture. Switch characters to Robin and select his Hazard Suit (hold the change suit button in order to open the selection screen or press the quick access button, in order to switch suits without opening the selection screen). This will enable you to walk across the toxic sludge, which is blocking the way for Batman.

Once you make it across the toxic sludge, destroy all the objects there. Also shoot the valves next to the ladder and destroy the ones that fall on the ground. After smashing the bricks, go to the right side, next to the ladder, and build a mechanism that will lower the ladder, thus creating a way up for you.

Go up while smashing all the objects on the way, and stand on the first mechanism on the left, then jump on the one on the right (marked with red light). This way you will shut down the water-gates, which will put out the fire below, creating a path for Batman.

Switch characters to Batman and approach the pillar that supports the train. Use his special ability to destroy the pillar, thus creating a way upwards.

When you go up, switch characters to Robin, approach the lever before you and use it. You may smash the brick-made objects before doing that and create a rope, which will help you to collect the bricks you passed before, when making the jump.

Once you use the lever, jump to the other side. If your jump is not far enough, press the so-called double jump (when you jump, press the jump button again to perform a roll in the air, which increases the distance of the jump).

When you get into the larger room, start smashing all the objects there. After that, approach the sewer crate and build an object out of the bricks scattered around.

When you get to the other side of the sewer you will come to Killer Croc boss fight. The first thing you should do is switching characters to Batman and putting on the Sensor Suit. Walk to the central part of the room, and you will notice turbines on both sides of the room (see the picture). Approach them and use Batman's special ability. While being near either of the turbines, stand on it to unlock the passage beneath it. While you are standing on the platform, Croc will jump above the surface of water, throwing around bricks, which you need to build a cannon.

Now move to the center, smash all the objects there, and use thus acquired bricks to build a machine. After that, switch characters to Robin and put on the Hazard Suit. Approach the turbines, which you have unlocked before, and collect the bricks lying on the floor.

Once you have gathered the bricks from both turbines, approach the machine and move the bricks there to build a cannon. You also have to avoid Croc Henchmen attacks, although they are not very tough. Most of the fighting is done by your partner. Man the cannon you have just built, and as soon as Croc is in sight, shoot him.

When the job is done, you can review the mission summary. Do not worry about Minikits, Gold Bricks or saving Adam West, because you could not have done this at this point anyway. You could have however, earned True Hero status by collecting 70,000 points from studs. You should have had no problems with that, if you smashed all brick-made objects on the way.