Portal Companion Cube

1280 × 800

Companion Cube — Gray, Neutral

1680 × 1050

Companion Cube and Rubik's Cube

1024 × 768

Cube-shaped Robot — Gray, Neutral

5000 × 3125

Portal Companion Cube

1366 × 854

Portal companion cube

1366 × 768

Companion Cube proposal

1920 × 1440

Angel Companion Cube

1920 × 1200

Chell and the Companion Cube

1920 × 1200

Red robot character design

2553 × 3248

Companion Cube with hearts

1280 × 800

Companion cubes with hearts

1280 × 1024