Aperture Laboratories Logo — Black, Futuristic

1600 × 1200

Portal game ending screen

2464 × 900

Portal game title collage

1024 × 768

GLaDOS in Aperture Science

1920 × 1080

White Figure Falling into Portal — Gray

1920 × 1080

Stick Figures in a Lab

1600 × 1200

White Figure Falling — Gray

1920 × 1080

White Figure Falling

1920 × 1080

Cave Johnson quote from Aperture

1440 × 900

Robotic Camera Device — Brown

1240 × 1754

Computer Interface Screen

1600 × 900

Quantum Tunneling Device

1920 × 1080