Like Behave, Welcome to My Underground Lair mimics an operating system with an evil spin. The game comes with a calculator, a Pac-man clone, a 2D driving game, and other computer-related applications. The game mimics various aspects commonly associated with Microsoft Windows of the era in which it was released, even making the player shut down the game like a computer and starting up with an unavoidable DOS-like cutscene.FeaturesMojo MazeDomination'Kin' EvilRock Paper ScissorsAbility to change cursor, backgrounds, screensaverCustomizable sound effects"Internet" with information about Austin PowersFrickulator (Calculator)Movie Clip utilizing only blue/black colors from the moviesQuotes from the game"You did not shutdown the Game Boy properly. Press a button to continue...""Checking for errors" followed by "Errors detected!""Throw me a frickin' bone here!"