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The Booo-merang is an invention created by Fenton Works. The Booo-merang locks onto a ghost's unique ecto-signature and, once it is thrown like a regular boomerang, seeks that ecto-signature out wherever that ghost goes until it finds its target. It is powered by an internal power source that can last for at least ten years during active use.

History

The Booo-merang was introduced in "The Ultimate Enemy." It locks onto Danny Fenton's ectoplasmic signature, greatly confusing Jack and Maddie Fenton.

Later, Jazz Fenton found that it wasn't locking onto whom she thought was Danny, leading her to figure out that it was really Dark Danny in disguise. In an attempt to get a message to Danny, trapped in the Ghost Zone ten years in the future, she writes a note to him and attaches it to the Booo-merang and sends it through the Fenton Portal into the Ghost Zone.

The Booo-merang flies through the Ghost Zone for ten years until it once again detects Danny's ecto-signature and locks in on him. By this point in time, the Booo-merang is visibly weathered, but remains functional and still has the note attached to it. Because the note is written in Jazz's handwriting and attached with her headband, Danny realizes that Jazz knows about his secret.

In "Kindred Spirits," Sam Manson and Tucker Foley use the Booo-merang to find Danny after he was kidnapped by Vlad Plasmius. When it reaches Vlad's mountain chalet, it hits Vlad directly in the head, distracting him just as he was about to attack Danny and Dani, saving them.

Appearance

The Booo-merang looks like a metal boomerang, with green details and a green dial in the center of it. Sam once described it as a "stupidly named tracking device."

Sightings

Season 2

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Fenton Works Inventions Booo-merang | Ecto-Dejecto | Ecto-Skeleton | Emergency Ops Center | Fenton Blimp | Fenton Family Ghost Assault Vehicle | Fenton Ghost Catcher | Fenton Ghost Fisher | Fenton Ghost Gloves | Fenton Ghost Peeler | Fenton Ghost Weasel | Fenton Phones | Fenton Portal | Fenton Specter Deflector | Fenton Thermos | Jack o' Nine Tails | Specter Speeder
Vladco Inventions Ghost Gauntlets | Plasmius Bug | Plasmius Maximus | Spectral energy neutralizer | Valerie's arsenal | Vlad Masters' hovercraft
Publications: Books, Magazines, and Newspapers Amity Park Angle | Amity Park Chronicle | Amity Park Daily | Amity Park Journal | Amity Park News | Chronicles of the Fright Knight | Dog Obedience | Father/Son Relationships for Stupids! | Genius Magazine | Ghost Hunter's Almanac | Ghost Killing for Dimwits | Goth's Guide to Mythology | How to Sound Hip for the Unhip | Jock's Quarterly | Romance for Rich Creepy Dimwits | Surviving Adolescence Through Therapy
Ghost Zone Objects Amulet of Aragon | Crown of Fire | Crystal Ball Staff | Desiree's genie bottle | Dora's Ring | Ember's Guitar | Johnny 13's bike | Infi-map | Pandora's Box | Reality Gauntlet | Ring of Rage | Sarcophagus of Forever Sleep | Scarab Scepter | Soul Shredder | Skeleton Key | Time medallion | Youngblood's Pirate Ship
Other Bearbert Einstein | Blood Blossoms | Car-Puter | Cramtastic Mark V | Cybertron Mega Computer | Disasteroid | Doomed | Ecto-ranium | Electric scooter | Fake-out make-out | Flying car | Foley by Tucker Foley | Foley Mood Meddler | Gi-normo 6000 | Gothbot 9000 | Hologram | PARTY | Portals XL | Proto-Portal | Spectral Barometer | Trinity of Doom | Tuckbot 9000 | Tucker Foley Alibi-o-matic | Tucker's PDA | X-23 Booster Rocket
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