This sound effect can be found on Series 8000 Science Fiction Sound Effects Library, which was made by Sound Ideas.
Clean, Full Length and Unedited Link to the Sound Effect
- The Adventures of Jimmy Neutron: Boy Genius (First part of the siren, heard in a high pitch.)
- Archie's Weird Mysteries (Heard once in "The Extra Terror-estrial".)
- Codename: Kids Next Door
- Johnny Test
- Rick and Morty
- Teen Titans Go!
- The Venture Bros. (Heard once in "Victor Echo November".)
- The X-Files
- Call of Duty: Modern Warfare 2 (Plays a bit faster for Tactical Nuke warnings.)
- Half-Life 2: Episode 2
- SpongeBob SquarePants: Battle for Bikini Bottom (Used mainly for Chuck.)
- Mario & Luigi: Dream Team (Heard when Pi'illodium starts its self-destruct sequence.)
- Godzilla Defense Force (Used for the alarm.)
Edited version as heard in The Adventures of Jimmy Neutron: Boy Genius: