Portal gun from Aperture Science

1200 × 750

Lemon Grenade — Yellow

1920 × 1080

Chell and the Aperture Science portal

1600 × 1000

Chell and the Aperture Science portal

1680 × 1050

Aperture Science entrance portal

1920 × 1080

Aperture Science Handheld Portal Device

1200 × 670

Aperture Science Portal Blueprint

1151 × 800

Aperture Science facility interior

1920 × 1080

Aperture Science logo in game

1920 × 1080

Portal game logo and icons

1920 × 1200

Portal game icon

2622 × 3312

Aperture Science welcome screen

1280 × 960