"Any luck?" called President Obama to W.D. Gaster. "No, sir." A very frustrated Gaster said as he delved deep into the Internet, trying to pursue the elusive virus that had infected countless computers around the world. His terminal had many screens, showing code streams and examples of viruses.

Gaster's hands were a blur, mashing down on his keyboard, writing codes, tapping out sequences to try stopping the virus and also to go even deeper into the Internet. Suddenly, the virus stopped. Gaster scanned it in an instant before it could move, and copied its code sequence. Gaster wiped of sweat that had mysteriously formed on his skull. "Phew! Finally, I can analyze the code in peace- what?!"

His terminal went black. Gaster stood up, motioned for Obama to stand off, and summoned his Gaster Blasters. "DIE, INFERNAL VIRUS!" he shouted and destroyed his terminal in anger. "Luckily, I memorised its code." Gaster said as he used magical psychokinesis to repair the terminal. He wrote out the code and hit "Enter". The words "ERROR – REQUESTED CODE SEQUENCE NOT FOUND" flashed across the screen. Gaster shouted in anger, fainted and hit the floor.

Deep in the Internet, the virus named GENISYS smiled evilly. It tore deep into the coding of yet another computer and destroyed its circuits. Another computer fell to the Invisible Virus. GENISYS found yet another computer and hacked into it. He was repelled by a Microsoft Firewall Program. "Hmph." The virus muttered, hacked into the firewall, and bypassed it. Another computer fell.

Alphys and Gaster were working round the clock to not catch the virus, but instead repair the fallen computers. They hacked into the computer and restored its circuits. However, this laborious process took thirty minutes to work, while the virus could infect and destroy a computer's programming in just one second. It could also alter its code sequence in a millisecond.

GENISYS came to an empty, inaccessible-to-all-except-for-him void in the cyberspace that was his home. GENISYS passed into the space, and shut down for the moment. Although dormant for now, GENISYS still remained alert, prepared to delete himself and everything that he had caused should he be caught.

Gaster and Alphys finally finished restoring all computers in the world and were bone tired, as Sans might say. Speedy had DJ delve into the Internet, hoping that his personal AI might find a lead or two. No luck. DJ came up two hours later, drained. It had found nothing.

GENISYS saw this through cameras, and laughed silently. Finally. At last, no one could stop him. The world would fall to the Invisible Virus.