16:13
Portal 2 Challenge Finally Humanly Possible After 8 Years
27:02
Portal 2's Toughest Speedrun was Finally Solved - World Record History of Ceiling Catapult
4:05
Passing A Portal Through Itself
13:01
Portal Speedrunners Found An In-Game Aimbot (And It's Not Cheating...)
54:46
How Speedrunners Conquered The World's Hardest Game
1:17:12
How speedrunners beat Portal 2 in under an hour (SPEEDRUN EXPLAINED - Any% (No SLA))
8:53
I Made Portal 3 Because Valve Wouldn't
16:05