Cat and Dog in Portals

1920 × 1200

Person Escaping Ninjas — Gray, Humorous

1680 × 1050

Person Using Portals — Gray, Humorous

1280 × 1024

Stick Figures with Text

1280 × 1024

Cat in a Maze — Purple

1600 × 1200

Cat in a Portal Maze

1600 × 1200

Robotic Puzzle Platform — Blue

1920 × 1080

Portal Game Icons — Light Blue

1280 × 1024

Robot in a Puzzle Room

1280 × 1024

Portal robot puzzle scene

1827 × 1080

Portal puzzle chamber

1280 × 1024

Portal game title screen

1920 × 1080