Go around and head back to where the Repulsion Gel was poured onto to jump to the next portion of Old Aperture where you have to pour both Repulsion and Propulsion Gels to get out of there.įirst, go down to press the button to pour the Repulsion Gel, then create to get to a caged platform to press another button to release the Propulsion Gel. When reaching at the end of the Propulsion Gel trail, there is a portal pad waiting for Chell to create a Portal onto, then go down the stairs to shoot another portal onto a portal pad on the other side (lower position) and step on the red button to pour the Repulsion Gel onto the floor. Once arriving to the next portion, head for a button and press it to pour the Propulsion Gel (the orange running gel) onto the floor to avoid the crushing lowering ceilings. To jump higher to the next platform, create portals, then step onto a red rectangular button to send in more Repulsion Gel onto the floor, jump, grab onto the hanging bars and get up to reach for the next elevator. Get to the falling Repulsion Gel (the blue jumping gel) to jump higher to the platform where another laser switch is located for the Sentry Turret to activate, stopping a lowering ceiling from trying to crush you in order to jump onto a platform with a portal pad on top to create a portal and create another one with the portal pad nearby to get across.
While taking the elevator to get out of the facilities, Chell and Wheatley soon finds the elevator malfunctioning and fall down, finding themselves to have fallen into the ruined remnants of Old Aperture Science and they need to get back up to the surface. Place the Companion Cube onto the Weight Switch there to get the elevator. Summon Sentry Turret to activate the switch to reveal another portal pad hanging from a high platform create another portal from there to get to the Weight Switch and place a Companion Cube onto it to activate an Excursion Funnel to get across to the other side of the Chamber and the exit. Create portals onto the portal pads located on opposite sides to avoid the Turrets and get to the other side where a laser switch is waiting. But to get to it, you need to create a portal onto the portal pad hanging above the door to enter.Īfter entering Test Chamber 91, you'll encounter a group of Sentry Turrets blocking the way. Climb the stairs and create a portal on a portal pad nearby, then head for a moving platform and create another portal on the portal pad from the opposite direction before entering into the first portal to get across to activate a button to release a High Energy Pellet to unlock the door leading to Test Chamber 91.
Upon entering Test Chamber 90, get to the laser switch which will then prompt the building manual for the Sentry Turret when it's done, lead the Sentry Turret to the switch and it will shoot at it to access a set of stairs. Once built, take the Companion Cube and put it onto the Switch to gain access to the next Test Chamber (Test Chamber 90). There is a door with a nearby Weight Switch that will activate the door, and a building manual for the Companion Cube will appear to start with it.
When approaching the ledge, use Chell's Portal Gun Ability to form portals on portal pads to get up onto the top of the ledge. Once the CHI Ability character gained enough CHI, the player will then guide the said character to spot where Cave is trapped in with a CHI altar nearby, where the CHI Ability character will deposit the CHI from there, releasing Cave.Ībilities Needed to Complete the Level 100%
You'll need a character with the Chi Ability (specifically one from Legends of Chima) to get the CHI fountain which is blocked by the portal pads that will need Chell to create portals on them to access the fountain. Together with a Portal Gun, a Companion Cube, and a Sentry Turret, the pair attempt to finish the Test Chambers and defeat GLaDOS once and for all.Īfter the scene where Chell and Wheatley land in Old Aperture Science, you can hear Cave Johnson's voice ringing out, saying he was able to transfer his soul into a core and was trapped inside the vicinities ever since. 2.3 Abilities Needed to Complete the Level 100%Ĭhell has returned to Aperture Science Enrichment Center and been reunited with the now anti-gravity Wheatley.