GLaDOS

GLaDOS battled Sherlock Holmes in an unofficial Epic Rap Battle. She was unofficially played by Nice Peter.

Information on the Rapper
GLaDOS is the main antagonist in the Portal series, a video game series made by Valve. Her name is short for 'Genetic Lifeform and Disk Operating System'. She has killed every scientist in Aperture Science research facilities. Her main enemy is Chell, the protagonist of the game. She is non organic, and is entirely composed of mechanical parts. She supposedly 'died' in Portal, but after she was heard singing 'Still Alive', she came back in Portal 2, more vicious than ever.

Lyrics
I don't have an ass, I'm a computer genie

You're a flawful coke-head, with a double billed beanie

Trivia

 * She is one of the only rappers that never appeared in an official rap battle (the others being Michael J. Fox and Chucky).
 * However, her oppenent, Sherlock Holmes, did appear in a rap battle.
 * Out of any ERB participant, unofficial or not, she has the shortest verse of any character, with only 2 lines in a verse.