3,465,157 views
3 years ago
5,073,967 views
5,142,362 views
1 year ago
12,051,202 views
10 years ago
Show more
4,463,690 views
198,000
0
The Game Theorists
19.2M subscribers
Tags
portal
portal 2
glados
chell
portal puzzle
portal 2 2020
portal song
portal 2 song
hardest puzzle
puzzle
pole puzzle
portal puzzles
portal ending
portal 2 ending
portal 3
half life
half life alyx
game theorists
game theory
matpat
game theory portal
the science of portals
36000 Comments