Portal - Taking the Companion Cube to the End

Portal - The Underground / Episode 9: Companion Cube

Companion Cube: A Portal Love Song

Using Tricks To Complete Puzzles Faster in Portal 1

Portal - The Underground / Episode 9: Companion Cube

Minecraft - How To Build A Portal Companion Cube!

Portal 2 Soundtrack - Weighted Companion Cube

Portal 2 Oh. Did I accidentally fizzle that companion cube?

Build with me: LEGO Dimensions Portal 2 Sentry Turret & Companion Cube

Portal with RTX Walkthrough

The Secret Portal Test Chamber

How to save and keep companion cube!!!

Portal] Companion Cube Fate

Companion Cube - DIY

All for the LOVE of a Companion Cube - Portal