Portal 2 robot with Nyan Cat

1920 × 1080

Pixel Art of a Robot — Blue, Neutral

2560 × 1600

Pixel Art of a Robot — Blue

1680 × 1050

Pixel Art Characters — Orange

1920 × 1080

Portal trolley in space

1440 × 900

Pixel art of a robot character

1131 × 707

pixel art robot holding heart

1280 × 994

Pixel art of Mega Man and a robot

1680 × 1050

pixel robot in space

1920 × 1200

Portal turrets and robots

2560 × 1600

White Robot with Red Light — Gray, Minimalist, Digital Art, Red Heart

1680 × 1050

pixel art character with gun

1024 × 768