Specter Inspector

From the Super Mario Wiki

Specter Inspector is a Duel Mini-game featured in Mario Party 8. The players' goal is to find three enemies (which will be either a Koopa Troopa, Penguin, Goomba, Bob-omb, Koopa Paratroopa, Whomp, Thwomp, Pink Boo, Fly Guy or even an Amp) before their opponent. To find them, the player must walk around the room and shine their flashlight on objects that seem to be rapidly shaking. Either an enemy will be found, or a Luigi's Mansion ghost will appear. Ghosts waste time, and they do not count toward the player's score.

Mini-games from Mario Party 8
4-player mini-games	Alpine Assault • At the Chomp Wash • Crank to Rank • Flip the Chimp • In the Nick of Time • Kartastrophe • Lava or Leave 'Em • Mario Matrix • Mosh-Pit Playroom • Punch-a-Bunch • Rudder Madness • Scooter Pursuit • Shake It Up • Sick and Twisted • Speedy Graffiti • Swing Kings • Treacherous Tightrope • Water Ski Spree
1-vs-3 mini-games	Bob-ombs Away • Chump Rope • Grabbin' Gold • Gun the Runner • Picture Perfect • Power Trip • Snow Way Out • Swervin' Skies • Thrash 'n' Crash
2-vs-2 mini-games	Boo-ting Gallery • Bumper Balloons • Crops 'n' Robbers • Grabby Gridiron • King of the Thrill • Lean, Mean Ravine • Paint Misbehavin' • Rowed to Victory • Sugar Rush • Winner or Dinner
Battle mini-games	Aim of the Game • Cut from the Team • Glacial Meltdown • Saucer Swarm • Snipe for the Picking
Duel mini-games	Attention Grabber • Balancing Act • Blazing Lassos • Breakneck Building • Cardiators • Cosmic Slalom • Eyebrawl • Frozen Assets • Ion the Prize • Lava Lobbers • Lob to Rob • Loco Motives • Pumper Cars • Rotation Station • Saucer Swarm • Settle it in Court • Specter Inspector • Surf's Way Up • Wing and a Scare • You're the Bob-omb
Challenge mini-games	Fruit Picker • Pour to Score • Stampede
Extra Zone mini-games	Canyon Cruisers • Chomping Frenzy • Flagging Rights • Moped Mayhem • Puzzle Pillars • Star Carnival Bowling • Table Menace • Trial by Tile
Boss Stage	Superstar Showdown