Hydrophobia Walkthrough

Hydrophobia is a 3rd person action platformer developed for the Xbox Live Arcade and released on September 29, 2010. The game takes place aboard a luxury ocean vessel known as the Queen of the World, which is attacked at the beginning of the game by a group of terrorists touting the slogan "Save the World; Kill yourself." Players take control of Kate Wilson, a systems engineer who is guided through the sinking vessel by her friend and boss, Scoot. The two must navigate their way through the flooded ship to try and find a way out as well as getting to the bottom of the hijacking.

Hydrophobia is powered by a new and unique engine called the Hydro Engine, which features realistic fluid dynamics, leading to some of the most realistically behaving water ever put in video games. Water naturally flows from area to area, filling up rooms, carrying objects and enemies along with it, and realistically affects the player's movement.

While the game is primarily an action platformer, there are some shooting elements as well. Kate eventually picks up a pistol that she can equip with different types of ammo. Combat in Hydrophobia is more about trying to use the environment to defeat your foes as opposed to just simply shooting your enemies until they go down. Players can destroy windows or remotely open doors to cause water too flood the room and drown her enemies, she can shoot down wires to cause the electricity to fry her foes, or use non lethal sonic rounds to push an explosive barrel towards an enemy, only to charge up the next shot and cause the barrel to explode.

• A: Run/Use Cover/Power Swim (in water)
• B: Roll/Dive (in water)
• X: Pick up item/Activate object
• Y: Jump/Swim upwards (in water)
• RT: Fire weapon
• RB: Equip Weapon
• LT: Use Hydro Kinetic Power (Challenge Room Only)
• LB Toggle Hydro Kinetics (Challenge Room Only)
• Back: Map screen
• Start: Pause Menu
• Control Pad Up: Turn on/off flashlight
• Control Pad Down: Activate MAVI
• Control Pad Right: Ammo menu

1. After the opening cutscene, you'll take control of Kate inside her apartment. Follow the waypoint and check out the computer.
2. Exit your apartment and watch the cutscene as Kate aboards the Queen of the World vessel.
3. A bomb will explode on the elevator you're riding, sending you crashing downwards into the depths of the ship.
4. Climb the various pipes and drop into the opening of the elevator shaft.
5. Run down to the door at the end of the hall and then run up the stairs to the next waypoint for another cutscene.
6. Climb the stairs again and head through the door to the left. Continue forward to trigger another cutscene.
7. When the cutscene ends, examine the computer to get the hacker module for your MAVI.
8. Turn around and start walking to trigger another cutscene in which things will start blowing up.
9. Head straight and position yourself on the edge with the girder in front of you. Leap toward it and then shimmy to the right until you're able to leap backwards on to solid ground.
10. Pull yourself up and then flip the switch to initiate a hack.
11. You need to try and match the amplitude and frequency by moving the right and left stick accordingly. When the controller rumbles, you know that you're close.
12. Head back through the door to the stairwell to trigger another quick cutscene.
13. Jump over the stairs to avoid the fire as you make your way down the steps to the door leading to Cycloconverter A.
14. Continue down the hallway as doors burst open and water fills the room. When you reach the end, the door will shut in your face. No worries. Swim back and find the emergency release on the wall.
15. Once you hit the release, swim back towards the door that just shut on you and the water will empty out in the next room.
16. Head through the next door and make a right. Enter through the door labeled "To Security Control"
17. Get on the ladder and then jump to the pipe to the left. Follow the pipes and ladders up to another elevator door that you can open.
18. Head through the door and then over to the glass window where you'll find Chief Billingham.
19. After the scene, turn to the left of the window and climb up the ladder.
20. Jump across the gap and then continue across the catwalk until you reach a pole hanging above.
21. Grab the pole and then shimmy to the right to reach the next platform.
22. Follow the path through the door and then walk around until you find another gray door that you can open.
23. Examine the glowing green body on the floor for a frequency key. You'll need these in order to search for the Ciphers that will help you through the purple encrypted doors.
24. Head out of this room and back into the main area where you talked to Chief Billingham.
25. Head over to the encrypted door and press Down on the d-pad to bring up your MAVI.
26. Look at the wall left of the encrypted door and you should find the first Cipher. Get it in your sights and then press X to store it.
27. Now that you have the Cipher, you can decrypt the nearby door and unlock it. Head on through to reach an area with a large gap in the middle with flames blasting.
28. Look for a pipe along the left wall and grab on to it. Shimmy to the right and wait for the flames to take a break before proceeding.
29. Head through the door and proceed down the stairs to the door at the bottom.
30. After the scene sneak behind the enemies until they get out of sight. You dont have a weapon yet, so don't engage.
31. Head down the hallway and open the locked door along the right wall. Activate the console and you'll have 45 seconds to return to the room where Chief Billingham awaits.
32. Move quickly, as 45 seconds isn't a lot of time. Note that you will have to slow down to wait for the flame jets to recede once you're on the pipe again.
33. When you make it back, watch the cutscene and then press Down on the D-pad to activate your MAVI and press X when you focus on the door to remotely open it.
34. Once you finish talking with Billingham, go hack the nearby computer to gain security level 1 access.
35. Head back to the door that you used the Cipher on to unlock and head on through. Balance walk across the girder and head through the door at the end.
36. Go down the steps and through the door on the right once the stairs are blocked by fire.
37. The corridor will soon flood, forcing you to swim for the exit. Swim to the end of the corridor and head through the door marked "Pressure Control"
38. Find the next open door that leads to Shuttle Access and simply follow the corridor all the way down until you reach the stairwell.
39. Head up the stairs and through the next door to trigger another cutscene.
40. Turn back to the stairs, take a deep breath, and swim down a level to reach the first door you see on the right.
41. Swim through and follow the corridor until you see a door you can open on the left.
42. This will take you to the elevator shaft. Swim all the way up and use the pipes to pull yourself up to the elevator door at the top. Head inside to complete the act.

1. When the act begins you'll obtain Kate's primary weapon throughout the game, an LP4. Right now it's only equipped with sonic rounds, which are mostly non lethal, but can be charged to stun enemies and interact with the environment.
2. You have a couple of options with how to deal with your first enemy. There's an electrical box that you can shoot to shock him when he gets close to it, various explosive barrels, or you could break one of the glass windows to floor the room with water, then repeatedly stun him until he drowns.
3. Head through the door at the end to reach the Engine Room Access and you'll learn about exploding gas leaks.
4. Another enemy awaits around the corner, so be ready to take him out with a piece of the environment.
5. Once you take him out, examine his body to find the frequency key and then head back the way you came.
6. Enemies will patrol the halls once again. Use cover to protect yourself from fire and continue using the environment to take them out.
7. Use your MAVI to follow the arrows to the elevator shaft. You're going to have to swim all the way down to the next elevator door, open it, and then follow the hall down until you see an opening on the left with light rays. Head inside and pop your head out for some air.
8. Once you've got oxygen in your lungs, dive back down and continue down the hall to the end where the Cipher will be. Take out your MAVI and download the Cipher to be able to move on.
9. Get some air, and then swim all the way back up the elevator shaft to where you were before.
10. Once you reach the top, go straight ahead and unlock the encrypted door leading to Cycloconverter A.
11. Two enemies away you beyond the next corner. Use the explosive barrel to take at least one of them out. The fire will also be spread by the rushing water caused by the glass door breaking, so there's a chance you'll take out the second guard as well. If not, just keep using charged shots on him until he drowns.
12. Head down the hall and then enter the vent to the left.
13. Go straight, make a right at the turn, and then take the second right to reach your next destination.
14. Follow the waypoint, but stop before you get zapped by the bolts of electricity emitting from the room to the left.
15. When you can, activate the console to receive the CCTV Hijack Module. With this, you can now hack security cameras to gain intel and remotely open doors.
16. Use your MAVI to hack the nearby camera and cycle through the feeds until you witness a terrorist threatening a couple of scientists.
17. Watch the scene and then open the door to the left to flood the room with electric water and shock the terrorists.
18. Shoot the glass window and head outside to trigger a tutorial cutscene where you'll learn about electrified cables.
19. Head toward the steps ahead and look down to spot a couple of guards on the bottom floor. Use the electrified cables and leaky gas canister to take them out.
20. When its clear, head down to the bottom floor and find the door that's labeled Cycloconverter B.
21. Keep on going down the long and empty hallways and you'll eventually get a new objective involving disabling the secondary cycloconverters.
22. When you come to a wide open room, pause before you head inside and use your MAVI to hack the security camera from behind the door frame. This way you can get an idea of where the enemies in the room are hiding.
23. When you're ready, head inside and turn left. Head for the stairs and quickly dash over to cover before the enemies' fire brings you down.
24. You can shoot the leaking gas off in the distance to kill the guy coming down the far staircase and use the explosive barrels on the catwalk nearby to take care of the closer enemy.
25. When the area is clear, head up the stairs and open the door on the right. There will be an enemy inside with a shotgun, so be ready.
26. With him down, you're free to hack the console up ahead.
27. After you hack the console, two enemies will appear at the bottom level. Dispatch them however you like and then grab the frequency key off one of their corpses.
28. With the frequency key in hand, head down to the bottom level and use your MAVI to follow the arrows and find the Cipher written on the wall above one of the pipes.
29. Head down to the bottom level and pull out your map to find your next objective, a valve inside a previously locked Security Office.
30. After you turn the valve, head back outside and head back into Cycloconverter B.
31. Go to the other side of the room and find the door labeled Cycloconverter A. Head inside and enter the door on the left at the end of the hall.
32. An enemy awaits in the next room, so take cover and be ready to take him out. There are two explosive barrels on the left that would work lovely.
33. Continue down the hall until you reach the next Cycloconverter. More enemies are waiting inside, so be careful not to get their attention until you're in safe cover. Try to lure them down stairs so you can fry them with the loose wire.
34. Head for the door labeled VFD Facility Access and proceed inside.
35. Wait for the flames to subside and continue through to the next door.
36. Here you'll have to hack the camera up ahead with your MAVI and then remotely open one of the doors to flood the room with water.
37. The water will extinguish the fire, allowing you to drop down and swim towards the green glowing dead body. Loot his corpse for the frequency key and then climb the nearby ladder.
38. Use your MAVI and look beyond the flame jet to find the Cipher. Download it and then drop back down into the water.
39. Swim for the surface and then head back past the flame jets toward Cycloconverter A. An encrypted door awaits on the right side.
40. Head through with your newly acquired frequency key and then drop down the ladder to reach a bottom level with a valve.
41. Crank the valve and then get ready to swim. Swim down the long tunnel and follow the path to reach a ladder. Climb up and then follow the hallway down to a ventilation shaft on the left wall.
42. Use your map to navigate through the vents. Along the way you'll pick up Gel Rounds for your weapon. Gel Rounds are essentially remote mines that you can use to easily kill enemies from a distance.
43. Try out your new toy in the next area, which just so happens to be packed with several enemies.
44. After you clear the area, look for a door near the right side of the room labeled "Maintenance." Head inside and hack the console.
45. More enemies will fill the room outside. If you still have gel rounds, use them. Otherwise, utilize the explosive barrels and hide behind cover to eliminate the enemies.
46. Search the green bodies to eventually find a frequency key. As usual, follow the arrows to find the Cipher. It's located along the wall above the catwalk.
47. With the Cipher downloaded, turn towards the semi closed door at the end of the platform. Use your MAVI to hack the security camera inside and then keep on switching through the feeds until Scoot tells you that you've found the correct one.
48. Open the door to drain the room and then head towards the encrypted door leading to the Loading Bay.
49. Get cover behind the yellow box and take out the enemy at the other side before proceeding.
50. Watch the cutscene and then look for a ladder at the right side of the large red door. Climb up the ladder and then use the pipes to reach the door to the right.
51. You won't find much of interest inside this room right now, but you will be able to jump to the scaffolding up ahead.
52. Grab on to the scaffolding and then shimmy around so you can jump to the pipes on the wall. From there, you can maneuver over to the vent door.
53. Follow the vent to the next room and hack the console inside.
54. Pick up the frequency from the glowing corpse and then look along the walls for glowing spots with water leaking out. Shoot these spots with sonic rounds to make them burst and flood the room with water.
55. Once the room is flooded, you can swim back over to the vent.
56. Follow the vent back to the previous area and use the ladder once again to reach the room above that used to not have anything interesting inside. Use your MAVI to search the room and find the Cipher.
57. With the Cipher downloaded, you can now exit through the large red door leading to the loading and storage depot.
58. Look to the right when you enter the room and you'll notice a box near a pillar with grip points. Climb up jump from grip to grip to reach the catwalk on the other side. Follow the path to another valve that you can use to turn off the flame jets down below.
59. Head through the door labeled "Holding Area." and you'll enter a flooded room that you now have to drain.
60. Swim down and follow your waypoint to reach the first valve. As soon as you turn it, quickly swim to the surface to get some air.
61. Now swim along the surface to the other side of the room and head towards the next valve. Note that it's behind a glass window, so you'll have to break it before you can get to the valve.
62. Turning both valves will drain the water all the way to the bottom, but we need a little more than that. Shoot the glowing piece on the wall to flood the room a little more so you can reach the platform above where you had to swim to reach the second valve.
63. There is a yellow pipe on the right wall. Grab it and then follow the path of pipes to reach a door leading to Loading Bay 1.
64. Instead of heading up the stairs, just turn left as soon as you reach the stairwell to find the next door.
65. Head through the door and then enter the next red door on the right. Follow the hallway and you'll eventually come to a console you can hack next to the door leading to the Control Room.
66. After the successful hack, head into the control room and pick up the frequency key as well as the semi-auto rounds. These rounds turn your weapon into a traditional pistol.
67. Get ready for a fight as there are many enemies in the actual loading bay. If you find yourself getting flanked, run away and find a new location to fight from.
68. Remember that you have more tools to dispatch enemies now than you used to. Utilize your gel rounds and your semi-auto rounds to make combat easier.
69. Head down to the bottom level when things are clear and approach the waypoint. Shoot the wall behind it to cause the room to begin to flood.
70. You want to keep on flooding the room, so continue looking for glowing spots on the wall. Note that each time you flood the room, more enemies will enter, and these guys are fine with shooting you while underwater.
71. Once the water level reaches the ceiling, pulls yourself up to the catwalk above and get out your MAVI to search for the Cipher.
72. With the Cipher downloaded, dive back into the water and swim towards the gate that houses the small elevator. It's where you first went to start filling the room with water. Note that there will be two enemies guarding it, so be ready to take them out with Gel Rounds.
73. Swim through the opening to reach the encrypted door on the other side. Head on through to drain the water and grab a much needed breath of air.
74. In the next area, drop down to the room below and head into the door behind you.
75. Follow the path to the door leading to the stairwell and quickly surface to get some air.
76. Head up the stairs and go through the door to reach Loading Bay 3. Be careful, there's a bunch of enemies inside that are fighting it out with a couple of friendlies.
77. Once you take care of them, follow the waypoint and break the window to reach a console that you can activate.
78. Next, jump across the moving bridge and search the glowing green body to find the frequency key.
79. Use your MAVI to follow the arrows and locate the Cipher, which can be found on the bottom floor to the left of the giant door. If there are cargo boxes in the way, try to push them away.
80. With the Cipher in hand, open the encrypted purple door just to the left of the door you originally entered from. It's on the second floor in one of the corners

1. Run down the hall into Cyclocoverter A. There's an enemy at the end of the hall, so dispatch him however you wish.
2. Head into the open door along the right wall and then use your Sonic Rounds to shoot wires so they can't dangle and electrocute you.
3. Head through the next door and turn left. There are enemies around the corner on both sides so grab some cover and be ready to take them out.
4. When it's clear, turn right at the intersection and continue to the end of the hall.
5. Enter through the door on the right and keep on swimming until you reach the actual Cycloconverter.
6. In this room will be enemies that have scuba masks on. Only difference between these guys and the regular enemies you've been facing is that they can't drown\so use one of your other ammo types against them.
7. With the enemies taken care of, head over to the stairs and shoot down the wires hanging over head.
8. Head up the stairs and make a left into the control room. Hack the console to complete your objective.
9. Follow the waypoint back down and into the door leading to Cycloconverter B.
10. Swim through the hallway and continue through the next door to pass a checkpoint.
11. Keep on swimming through the doors to reach the waypoint, remembering to surface whenever you need air.
12. Once you reach the waypoint, head through the door and be prepared to fight more scuba masked enemies.
13. Head up the stairs towards the next waypoint and hack the next console to the right.
14. Watch the cutscene and then head through the door leading to the Maintenance Access.
15. Head down to the end of the hall and then make a right to reach the door labeled Cycloconverter A.
16. Continue down the halls until you reach a blue striped door leading to the elevator shaft. From here you have to swim all the way down until you reach the first floor. Swim fast because you won't be able to get air for a while.
17. Once you're back on the first floor, turn right and swim forward until you see the door leading to the Shuttle Plaza. Get air and then enter the door leading to the Central Station Access.
18. Decrypt the object on the wall and then head into the elevator.
19. This last section of the game plays out like a pretty standard shooter. Move from cover to cover as you push forward, taking out the enemies along the way with your more lethal ammo.
20. Eventually your goal will be to move around the center object to the other side where you'll be able to run up a ramp of signs and jump up to the top of the structure in the middle.
21. From there, climb the ladder to the top and then climb up the broken steel support. When the support straightens out, turn the camera so you can see behind Kate and line her up with the opening in the vent.
22. Jump over to the vent and crawl all the way through to the end.
23. Take out the enemies that enter through the elevators of the next room and then enter the security office. Be ready for an enemy inside.
24. Swim to the top floor and hack the last console.
25. Get back down to the bottom floor to trigger a cutscene and complete the game!

• Controls
• Act 1
• Act 2
• Act 3