Dual Scream

"Ho ho! The terrified look in your eye just gave me a great idea. From now on, I'm going to call the DS &mdash; this is genius &mdash; the Dual Scream!"

- Professor Elvin Gadd

The Dual Scream is a device designed by Professor Elvin Gadd in Luigi's Mansion: Dark Moon. Dual Scream is a pun on "dual screen"—the abbreviation "DS" in Nintendo DS, which is what the Dual Scream is modeled after. It functions similarly to the Game Boy Horror from Luigi's Mansion. It allows E. Gadd to communicate with Luigi, displays mission objectives and a map of the current mansion on the 3DS's bottom screen, and displays the pause menu on the 3DS's top screen when accessed. Its ringtone is an arrangement of the Luigi's Mansion theme. In Luigi's Mansion 3, it was succeeded by the Virtual Boo.

Trivia

 * While Nintendo DS speakers have a rectangular shape, the speakers of the Dual Scream are shaped like E. Gadd's head.