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Bioshock 2 Walkthrough: Siren Alley and Dionysus Park

by: Rob Kentworth ; edited by: Michael Hartman ; updated: 4/17/2012 • Leave a comment

A Bioshock 2 walkthrough, covering the Siren Alley and Dionysus Park levels. During these levels, you'll run into Spider and Houdini Splicers.

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    Bioshock 2 Game Walkthrough: Siren Alley Start

    Bioshock 2 game walkthrough: An ADAM slug in the ocean at the start of the Siren Alley level.   After you regain control in the water, head in the opposite direction of the Dionysus Park entrance. Make sure you collect the slugs in the ocean first though, for some extra ADAM. I found three of them.

    Once you drain the water from the entrance to Siren Alley, you'll gain entry and some Splicers will run ahead. They'll start shooting at a new type of Big Daddy who fires explosives. So, let them die. Loot everything to the left where the Vitae-Chamber is.

    Next, you'll want to clear the area of Splicers and take out the Big Daddy to gain access to the Little Sister. The turrets you can loot off his corpse will come in handy later. After adopting her, go to the first corpse which should be up the stairs in the area. Defend her. After that, pick her up and loot the area before taking the stairs back down.

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    Bioshock 2 Game Walkthrough: Siren Alley - Getting the First Little Sister Gift

    Next, you'll want to clear the area of Splicers and take out the Big Daddy to gain access to the Little Sister. The turrets you can loot off his corpse will come in handy later. After adopting her, go to the first corpse which should be up the stairs in the area. Defend her and then pick her up and loot the area before taking the stairs back down.

    Hold down square and follow the trail to the next corpse. It should be by the Gatherer's Garden in the same area. Once the Splicer leaves, set the Little Sister down and defend her. Take her to the vent then. If you rescue her and have rescued the others so far, you'll find your first reward for doing so. Go and claim it from in front of the Gatherer's Garden. Make sure you equip the Proud Parent tonic whenever you defend Little Sisters.

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    Bioshock 2 Game Walkthrough: Siren Alley - Adopting the Second Little Sister

    After that, search the Mermaid Lounge section of the area. In order to get into the room that's locked on the ground floor, you'll need to go upstairs and hack the security control. Once that's done, go into the room where you hack the security console and drop down. Instead of upgrading your weapons straight away though, wait.

    Now, head to where the quest objective arrow points. Take the Plasmid as you enter and be wary of the camera in the area. Also, after taking out the enemies, you might hear a Big Daddy and Little Sister in the area you just came from/started out in. Before going back though, hack the turret upstairs and go to the door there. You'll receive a new goal, but before heading back to the starting area and taking out the Big Daddy, take the Audio Diary. Now go and kill the Big Daddy and adopt the Little Sister.

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    Bioshock 2 Game Walkthrough: Siren Alley - Finding the Keycode and Killing Daniel Wales

    Bioshock 2 Game Walkthrough: Daniel Wales in Siren Alley.   Now then, follow the quest arrow and you'll find a Brute Splicer trying to open a door. Go to him and he'll open it. Once inside, pick up the Spear Gun by the Big Daddy's corpse. Now, you can head back and use the weapon upgrade machine if you want. Otherwise, continue on.

    You'll want to head up the stairs. You'll see a Spider Splicer move along the ceiling. They can be quite nasty and you'll want to shock them when they're on the ceiling so that they drop down. Regardless, go in the opposite direction he went in. There should be a corpse to harvest here. So, harvest it if you wish. After defending and picking the Little Sister back up, loot the area and go up the next set of stairs.

    Keep following the quest arrow and you'll see Daniel Wales jump down a hole in the floor. Follow him and kill him. Loot his body for the code then.

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    Bioshock 2: Siren Alley Walkthrough - Opening the Door and Defeating the Big Sister

    Bioshock 2 Siren Alley walkthrough: Little Sister's Orphanage.   Follow the quest arrow to the door where you need to enter the keycode. Before entering the keycode, use the Mini-Turrets (hacking device) you've picked up to create a defensive perimeter. Also use the Trap Rivets. Then enter the code. Hold the Splicers off. Head through the door then where you entered the keycode. There'll be a corpse to harvest in this area, so hold down square and follow the trail. Then defend the Little Sister. Take her to a vent then and rescue her.

    Now feel free to explore but don't follow the quest arrow yet, as a Big daddy should walk around the area with the third and final Little Sister. So, when he does and you find her, kill him and adopt her. Once you have, hold down the square button and follow the trail to the next corpse you need to harvest on the second floor. After defending her, take her to the next corpse in the area and repeat the process. After that, take her to a vent and take out the Big Sister that comes.

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    Bioshock 2: Siren Alley Walkthrough - Taking Out the Big Sister

    Now feel free to explore but don't follow the quest arrow yet, as a Big daddy should walk around the area with the third and final Little Sister. So, when he does and you find her, kill him and adopt her. Once you have, hold down the square button and follow the trail to the next corpse you need to harvest on the second floor. After defending her, take her to the next corpse in the area and repeat the process. After that, take her to a vent and take out the Big Sister that comes.

    Before following the quest arrow again, make sure you head into the Green Groceries area near the Little Sister's Orphanage for a tonic, Cure All. There's also a handy tonic down an alley in the main area, called Vending Expert.

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    Bioshock 2: Siren Alley Walkthrough - Defeating Simon Wales

    Bioshock 2 Siren Alley Walkthrough: Simon Wales' church area.  

    Follow the quest arrow after you've got the Gene Tonics mentioned. After you go through the next door following the Splicer ambush, turn left when you can to find a weapon upgrade machine. Then continue on and you'll enter Simon Wales' church. Boss music will play and it's time to face Simon and the remainder of his cult. Kill as many Splicers as you can before going down to the ground level.

    Then, when you're on the ground level, deal with Simon. He happens to control a Security Bot, so it may be ideal to disable that first. Once he's dead, loot his corpse.

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    Bioshock 2: Siren Alley Walkthrough - Fleeing the Area

    After looting his corpse, head on through the next door following the quest arrow. Once you're ready and sure you've explored everywhere and got everything, flip the Pump Control switch.

    What follows is a really great sequence. Enjoy all of the special effects and head back to the beginning of the level. To get there, just follow the quest arrow and once you reach the Dionysus Park entrance, just flip the switch to drain the water and begin the next level.

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    Bioshock 2: Walkthrough for Dionysus Park - Meeting and Killing the First Houdini Splicer

    Bioshock 2: Dionysus Park walkthrough - beginning of the level.   When the level begins, move ahead a bit and Sinclair will talk to you. Your goal is to head to the train station. This is one area of the game that is quite simple to navigate, as there are only two floors (with the first floor being small). It's also quite straightforward and doesn't have many things to find.

    So, follow the quest arrow. Some doors/gates will shut, but don't panic. Proceed along the indicated path. A red mist will appear but again, don't panic and continue moving. Eventually, you'll come to a large room and a Houdini Splicer will start throwing fire at you (the Houdini is what the red mist was). Kill the Splicer.

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    Bioshock 2: Walkthrough for Dionysus Park - Heading for the Tram Area and Meeting Stanley Poole

    Afterwards, continue following the quest arrow directions. Hack the camera just after taking the stairs up. A bit further on, a Splicer will start talking and then run into the hallway only to fall down dead. Don't panic and head in the direction she came from.

    Take the Splicers out and you'll hear someone say about staying away from their little girl. Continue following the quest arrow. Kill the enemies just after the Promenade and Lamb will contact you, followed by Stanley Poole. Continue moving forward and ignore the weapon upgrade machine for now when you come across it. After the tunnel, Eleanor will contact you and she's left you a new weapon as a gift. Pick it up and continue.

    In the tram area, go up to the glass window and listen to Stanley.

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    Bioshock 2: Walkthrough for Dionysus Park - Finding the Little Sisters and Leaving for Fontaine Futuristics

    Bioshock 2: Dionysus Park walkthrough - Time to decide whether Stanley lives.   You have a new goal now. Find the three Little Sisters. First, go back to the weapon upgrade machine and use it. Now open your map. There should be a Little Sister in the park area to the north. Head there. Take out the Big Daddys and then command the Little Sister to harvest the corpse in the same room. Pick her up after defending her and hold down square to find the next corpse to harvest. Harvest the corpse. Take her to the vent and rescue her.

    Open your map up after doing that. Head to the J.Fischer Gallery next and repeat the process of picking up the Little Sister, defending her and then rescuing. After doing that, open your map again. You want to head to the Triton Theater now and once there, repeat the process of keeping the Little Sister safe. You know the drill. After you've harvested two corpses, take her to a vent and rescue her after preparing for a Big Sister

    Now head back to the tram station. Once there, you get to choose if Stanley lives or dies. For the purpose of the walkthrough so that everything's accurate, let him live. Hop on the train then to end the level.

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    Links to Other Bioshock 2 Articles

    Below are links to other articles that may be of interest:

    Bioshock 2 Enemy Guide

    Guide to Bioshock 2's Multiplayer Weapons

    Bioshock 2 Plasmid Guide

    Bioshock 2 Multiplayer Plasmid Guide

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