Portal Stories: Mel Past Power
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Map: st_a2_past_power.bsp
Title: Past Power
This chamber has the Repulsion Gel and the Cleansing Gel and advanced Portal jumping.
Hazards
- Falling to Death
- Death Fizzler
Walkthrough
Story Mode
Chamber
- Press the Pedestal Button to dispense Repulsion Gel on the floor.
- Place your first portal on the floor underneath the Repulsion Gel tube.
- Place your second portal on the wall on the ledge at the back of the room.
- Press the Pedestal Button again to dispense Repulsion Gel onto the ledge.
- Jump up to the grate platform with the Repulsion Gel on the floor and ledge.
- Walk outside and press the Pedestal Button to drop a Cube onto the raised platform.
- Move your first portal to the wall above the outside Pedestal Button.
- Walk back inside and move your second portal to a spot on the floor close to the grate platform.
- Jump into the portal to fling yourself to the raised platform.
- Pick up the Cube and jump to the grate platform.
- If you miss the jump, you can use your portals to get up without losing the Cube in the Material Emancipation Grill doorway.
- Bounce over to the door to the second area.
- Place the Cube on the Heavy Duty Super-Colliding Super Button to open the door.
- Enter the second area.
- Move your first portal to the wall next to the second Heavy Duty Super-Colliding Super Button.
- Return to the first area.
- Pick up the Cube and take it through the portal to the second area.
- Place the Cube on the second Heavy Duty Super-Colliding Super Button to disable the Material Emancipation Grill in the second area and turn on one blocking off the Cube and Heavy Duty Super-Colliding Super Button.
- Place your first portal on the floor behind the disabled Material Emancipation Grill.
- Place your second portal on the floor in the first area.
- Go through the portal to the first area.
- Jump up to the grate platform with the Repulsion Gel on the floor and ledge.
- Jump into the portal from the grate platform to fling yourself upwards in the second area.
- Press the Pedestal Button at the ceiling in the second area to change the Death Fizzler to a Material Emancipation Grill.
- Walk through the Material Emancipation Grill.
- Drop down to the Repulsion Gel tube and walk across it to Pump Station Beta.
Pump Stations
- Drop to the ground.
- Head to the left and enter the door that opens.
- Walk to the rear-left pillar.
- Place your first portal at the top of the pillar, on the spot marked with a red X.
- Place your second portal on the floor at the base of the pillar.
- Drop through the portal and land in the portal again as you're falling to fling yourself to the pump station.
- Walk inside the pump station and flip the switch to turn on the Propulsion Gel.
- Drop to the floor.
- Move your first portal to the wall through the broken window below the pump station.
- Move your second portal to the floor underneath the Propulsion Gel.
- Wait a few seconds to let the Propulsion Gel dispense in the hallway.
- Drop through the portal and run through the hall, grabbing or knocking over the turret at the end to stop it shooting you.
- Pull the lever in the officer labelled "OVERRIDE".
- Walk through the Material Emancipation Grill in the hallway.
- Turn left and walk through the door.
- After following Virgil's directions, turn around and walk back and enter the door on the right.
- Flip the switch to turn on the Repulsion Gel.
- Walk through the gate that opens and follow the catwalk to the right, going through the door at the end.
- Walk through the hall to the next door.
- Go through the door and Material Emancipation Grill, then go up the stairs to the left to the next door which opens to the next big area.
- Place your first portal on the floor portal surface you see immediately out of the door.
- From the ledge you can see another floor portal surface below and to the right. Place your second portal there.
- Jump into your second portal to fling yourself upward from your first portal.
- While in the air, move your second portal to the nearby wall portal surface (as high as possible) to fling yourself onto the top of the next test chamber.
- Walk toward the large "EXIT" decal and drop down to the catwalk to access the elevator.
Advanced Mode
Chamber
- Walk outside through the Material Emancipation Grill.
- Place your first portal on the wall above the grate platform.
- Place your second portal on the wall beside you.
- Go through the portal and press the Pedestal Button to drop a Cube onto the raised platform.
- Walk back inside on the grate platform and move your second portal to a spot on the floor close to the grate platform.
- Jump into the portal to fling yourself to the raised platform.
- Pick up the Cube and jump to the grate platform.
- If you miss the jump, you can use your portals to get up without losing the Cube in the Material Emancipation Grill doorway.
- Move your first portal to the floor near the ledge with the door.
- Jump into the portal to fling yourself up to the door.
- Place the Cube on the Heavy Duty Super-Colliding Super Button to open the door.
- Enter the second area.
- Move your first portal to the wall next to the second Heavy Duty Super-Colliding Super Button.
- Return to the first area.
- Pick up the Cube and take it through the portal to the second area.
- Place the Cube on the second Heavy Duty Super-Colliding Super Button to disable the Material Emancipation Grill in the second area and turn on one blocking off the Cube and Heavy Duty Super-Colliding Super Button.
- Place your first portal on the floor behind the disabled Material Emancipation Grill.
- Place your second portal on the floor in the first area.
- Go through the portal to the first area.
- Walk outside through the Material Emancipation Grill.
- Get up to the grate platform with your portals as before.
- Walk inside and move your first portal to the floor behind the disabled Material Emancipation Grill in the second area, which you can see through a grate wall.
- Place your second portal on a spot on the floor close to the grate platform.
- Jump into the portal from the grate platform to fling yourself upwards in the second area.
- Press the Pedestal Button at the ceiling in the second area to change the Death Fizzler to a Material Emancipation Grill.
- Walk through the Material Emancipation Grill.
- Drop down to the Repulsion Gel tube and walk across it to Pump Station Beta.
Pump Stations
- Drop to the ground.
- Head to the left and enter the door that opens.
- Place your first portal at the top of any pillar on the inside.
- Place your second portal at the base of the pillar.
- Go through the portal to get to the high-up platform.
- Walk to the left side of the platform and move your first portal to the floor between the platform and the pump station.
- Walk to the opening in the middle of the grate platform and move your second portal to the floor below.
- Jump down into this portal to fling yourself into the air beside the grate platform.
- While in the air, move your first portal to the top of the rear-left pillar, on the spot marked with a red X, to fling yourself to the pump station.
- Walk inside the pump station and flip the switch to turn on the Propulsion Gel.
- Drop to the floor.
- Move your first portal to the wall through the broken window below the pump station.
- Move your second portal to the floor underneath the Propulsion Gel.
- Wait a few seconds to let the Propulsion Gel dispense in the hallway.
- Drop through the portal and run through the hall, grabbing or knocking over the turret at the end to stop it shooting you.
- Pull the lever in the officer labelled "OVERRIDE".
- Walk through the Material Emancipation Grill in the hallway.
- Turn left and walk through the door.
- After following Virgil's directions, turn around and walk back and enter the door on the right.
- Flip the switch to turn on the Repulsion Gel.
- Walk through the gate that opens and follow the catwalk to the right, going through the door at the end.
- Walk through the hall to the next door.
- Go through the door and Material Emancipation Grill, then go up the stairs to the left to the next door which opens to the next big area.
- Place your first portal on the floor portal surface you see immediately out of the door.
- From the ledge you can see another floor portal surface below and to the right. Place your second portal there.
- Jump into your second portal to fling yourself upward from your first portal.
- While in the air, move your second portal to the nearby wall portal surface (as high as possible) to fling yourself onto the top of the next test chamber.
- Walk toward the large "EXIT" decal and drop down to the catwalk to access the elevator.
Easter Egg walkthrough
- Follow the regular walkthrough until you are on top of the test chamber at the end.
- Look to the left from the "EXIT" decal to see a structure with a portal surface at the bottom. Move a portal there.
- Jump down to a safe spot that isn't the catwalk to the elevator.
- Find another portal surface and move your other portal there.
- Hop through the portal to get to the structure.
- Follow the catwalk to the vitrified door, ignoring Virgil.
- Open the door.
Video walkthrough
Trivia
- Borealis floats and graffiti can be found near a few of the Vitrified doors.
- The music played during this chamber is known as Out of Order.
Achievements
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Curious Find all the Vitrified door messages |
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You Shouldn't be Here Experience a Deeply Unimpactful Moment |
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