Glowing Blue Portal Device

1280 × 800

Portal 2 robot companion

3648 × 2562

Robotic Sphere with Blue Light — Dramatic, Night, Digital Art

1600 × 900

Robot with Blue Eye — Calm

1602 × 1024

Alien City in Space

1280 × 1024

Companion Cube — Blue

1920 × 1200

Spartan Soldier in Armor — Blue, Dramatic, Digital Art, Helmet

3713 × 4725

Soldiers in Tactical Gear — Blue, Dramatic

1920 × 1200

Turret Sentry Robot — Black, Dramatic

1152 × 864

Woman and Robot in Field

1920 × 1080

Anime Character with Long Hair — Blue, Dramatic, Long White Hair

1280 × 1024

Mega Man with Wings

1024 × 819