At the part of level 19, where you get to the part where your back in the “impossible level”, there is a much easier way to do it.
Go through the anti thing door, and stand on the button. Shoot a blue portal in front of you, and shoot a orange one straight through the door, so it hits the wall. Then jump thought the orange portal.
NOWitsOK
Great job dcjoedog, I like how you did it so it could be followed easy.
Killakalla
I <3 the song at the end. WAIT!!?!? NO CAKE AND BLACK MESA WAS A JOKE! GORDON NO!!
lol
how to end chamber 19 when u get in fire room
whimp
Open the door, by pressing use
steeve
it won’t open i don’t know why
raj153
same prob 4 me
SilverWolf
I finished the game today with a little help from this. The ending was CREEPY!! And unfortunately, my sound didn’t work so I had to use subs.
This was an awesome and very scary game!!
huh123
How do you escape the trap? When you fall in a place filled with 3 armed robots.
philzz
the game is short:S
sam11x
huh123^^ you have to crouch behind the barrels then shoot a portal in the wall, then when a door opens shoot a portal below the robot and it will go through the portal on the wall and land sideways