Related to GlaDOS and the cake

Portal robot with laser

1920 × 1200

Portal: Space

1920 × 1080

Portal turret with laser

1440 × 900

Portal robot with laser beam

2560 × 1080

Portal robot character

1440 × 960

Portal puzzle room with cubes

1280 × 1024

Stick Figure Falling — White, Neutral

1920 × 1200

Now You're Thinking With Portals

1440 × 900

Companion cube in a test chamber

1680 × 1050

Login screens for Black Mesa and Aperture Science

2880 × 900

Robot Using Portals

1600 × 1200

Robot with Laser Beam — Gray

2560 × 1080

Hands Holding a Cube — Black

1680 × 1050

Chell with a Companion Cube

1920 × 1080

robot in a testing chamber

1280 × 1024

Robot in Puzzle Room — Gray, Mechanical

1280 × 1024

Robotic Arm in Lab — Gray

1920 × 1080

Turret Sentry Robot — Black, Dramatic, Digital Art, Laser Beam

1280 × 1024

Chell and robots in a test chamber

1024 × 768

Silhouette of a Robot — Black, Dramatic, Serious

1920 × 1080

Companion Cube dialogue

1920 × 1200

Robot in Puzzle Room — Gray

1337 × 1094

Scientist in a bathtub

1280 × 1024

Robot in Puzzle Room

1280 × 1024