glowing cube with heart symbols

1680 × 1050

Cube with Portals

1920 × 1200

CARGOrilla robot with cube

1600 × 1200

Companion Cube with hearts

1280 × 800

Companion Cube with hearts

1680 × 1050

Companion cubes with hearts

1280 × 1024

Companion cube with hearts

1680 × 1050

Portal 2 Companion Cube

1600 × 900

Aperture Science Devices

2304 × 1728

Portal Companion Cubes

1920 × 1080

Portal cubes with heart symbols

1440 × 900

Aperture Science Sign — Gray

1920 × 1080