H.i.m: The Dual Portal Device Part 1

H.I.M: the Dual PORTAL Device part 1

Binky's Chiller

H.I.M: the Dual PORTAL Device part 2

Binky's Chiller

H.I.M: the Dual PORTAL Device part 3

Binky's Chiller

H.I.M: the Dual PORTAL Device part 4

Binky's Chiller

Aperture Investment Opportunity #4: "Boots"

getting the dual portal device be like

SECRET Boss Dialogue - Portal 2

Portal 2 - Meet Wheatley! The Courtesy Call | Part 1

KingArthur Legendary

Portal 1 Playthrough (2): Dual Portal Device

StephenCacilhas

H.I.M: PORTAL 1 the Intelligence core part 1

Binky's Chiller

Portal gun from portal 1 and 2

Portal Gun in REAL LIFE? #shorts

Gravity Falls | What is hidden on the other side of the portal

Portal 2 Gels

LORE - Portal Lore in a Minute!

LORE

GLaDOS Plays Portal 2 [All Parts]

The Science of the Portal Gun

The Shuckmeister

Portal - Acquiring the Aperture Science Handheld Portal Device Part 1

Portal Turret Sees Everything 👀

Portal 2 with Infinite Portals