The Locket is an armor item found in Asgore's home, replacing the Heart Locket in the Genocide Route. Its offensive counterpart is the Real Knife. It is the Genocide Route armor item associated with the First Human.
- Despite being the toughest armor in the game, it never sees any real use as it is found right at the end of the Genocide Route, and the only enemy left always deals one damage.
- Because of this, it can be sold without repercussion for extra healing items for said fight.
- Taking into consideration the actions required to get The Locket, "You can feel it beating." may be a reference to "The Telltale Heart" by Edgar Allan Poe.
- It is speculated that The Locket is the same as its counterpart, Heart Locket, found in Neutral or True Pacifist Routes. The protagonist likely does not know its real value and sees it as a generic locket. The First Human, however, knows its true value and feels reunited with their Locket.
|Consumables|| Monster Candy • Bandage • Spider Donut • Spider Cider • Butterscotch Pie / Snail Pie|
Snowman Piece • Bisicle / Unisicle • Cinnamon Bunny • Temmie Flakes • Abandoned Quiche
Dog Salad • Astronaut Food • Instant Noodles • Crab Apple • Hot Dog...? / Hot Cat
Glamburger • Sea Tea • Starfait • Legendary Hero • Bad Memory • Last Dream • Popato Chisps
Nice Cream • Junk Food • Steak in the Shape of Mettaton's Face • Hush Puppy
|Weapons|| Stick • Toy Knife • Tough Glove • Ballet Shoes • Torn Notebook|
Burnt Pan • Empty Gun • Worn Dagger / Real Knife
|Armor|| Bandage • Faded Ribbon • Manly Bandanna • Old Tutu • Cloudy Glasses|
Stained Apron • Cowboy Hat • Heart Locket / The Locket • Temmie Armor
|Miscellaneous||Punch Card • Annoying Dog • Dog Residue • Undyne's Letter (EX) • Mystery Key|
|Cut Content||Croquet Roll • Rock Candy • Pumpkin Rings • Stoic Onion • Ghost Fruit • Puppydough Icecream|