This article is about a monster in Superhuman Samurai Syber-Squad.
Nightmare Virus: This virus had a large shell, a mouth with several jagged teeth, & two long, powerful tentacles for arms. It briefly fought Servo. Sydney & Tanker boarded Tracto & Borr to help Servo. In "To Sleep, Perchance to Scream", the Nightmare Virus was sent into Sam's digital clock to give him numerous nightmares. When the morning seemingly came, Sam's friends were able to find out where the virus is, it was destroyed by Servo with his Grid Power Punch with help from Jamb & Torb. After that, Sam woke up....it all seemed to be a dream.