Gru Gun

Absolutely! Here's a breakdown of all those elements from Undertale:

**Characters**

* **Main Characters:**
* Frisk (the player character)
* Flowey
* Toriel
* Sans
* Papyrus
* Undyne
* Alphys
* Mettaton
* Asgore
* Asriel

* **Other Notable Characters:**
* Monster Kid
* Temmie
* Napstablook
* Burgerpants
* Nice Cream Guy
* Gerson
* So Sorry
* Glyde
* Muffet
* Grillby
* Heats Flamesman
* Royal Guards
* Jerry
* Annoying Dog
* W.D. Gaster (a mysterious, hidden character)

**Items**

* **Healing Items:**
* Spider Cider
* Spider Donut
* Butterscotch Pie
* Cinnamon Bunny
* Hot Dog
* Hot Cat
* Snowman Piece
* Nice Cream
* Monster Candy
* Pie Slice
* Junk Food
* Instant Noodles
* Sea Tea
* Lemon Candy
* Candy
* Astronaut Food

* **Weapons:**
* Stick
* Toy Knife
* Tough Glove
* Ballet Shoes
* Punch Card
* Worn Dagger
* Real Knife

* **Armor:**
* Old Tutu
* Mano
* Ribbon
* Tough of Glove
* Stained Apron
* Cowboy Hat
* Pink Bow
* Dirty Bandanna
* Cool Shades
* The Locket
* Temmie Armor

* **Key Items:**
* Oddly Shaped Key
* Small Dog
* Dog Residue
* Deteriorating Notebook
* Red Key
* White Key
* Black Key
* Asriel's Flower

* **Other Items:**
* Gold
* Dog Salad
* Faded Ribbon
* Manly Bandanna
* Torn Notebook

**OST (Original Sound Track)**

* **Overworld Themes:**
* "Once Upon a Time"
* "Start Menu"
* "Your Best Friend"
* "Fallen Down"
* "Ruins"
* "Uwa!! So Holiday!!"
* "Snowy"
* "Snowdin"
* "Bonetrousle"
* "Dating Fight"
* "Waterfall"
* "Run!"
* "Temmie Village"
* "Dogsong"
* "Undyne"
* "Waterfall"
* "Spear of Justice"
* "Alphys"
* "It's Showtime!"
* "Metal Crusher"
* "Death by Glamour"
* "Power of "NEO!""
* "Hotel"
* "CORE"
* "Determination"
* "Bergentrückung"
* "Asgore"
* "Your Best Nightmare"
* "Finale"
* "Hopes and Dreams"
* "Megalovania"
* "Last Goodbye"
* "The Choice"
* "Small Shock"
* "But the Earth Refused to Die

Battle Themes:

"Enemy Approaching"
"Anticipation"
"Battle Against a True Hero"
"Amalgam"
"SAVE the World"
Other Tracks:

"Dummy!"
"Thundersnail"
"Tem Shop"
"Here We Are"
"She's Playing Piano"
"An Ending"
"Memory"
Endings

Neutral Ending: Achieved by defeating Asgore without fulfilling the requirements for the True Pacifist ending. Many variations based on who you spared or killed.
True Pacifist Ending: Achieved by completing a specific set of actions focused on sparing every monster and befriending key characters. Leads to a final boss fight against Asriel and a happy resolution.
Genocide Ending: Achieved by intentionally killing every monster in the Underground. Results in a confrontation with Sans and a tragic, bleak conclusion.
Secrets

W.D. Gaster: A mysterious, redacted character hinted at through hidden clues and dialogue.
Unused Content: Many unused rooms, enemies, items, and dialogue can be found within the game's files.
Alternate Dialogue: Many characters have unique lines of dialogue depending on the player's actions.
Hidden Rooms: Several secret rooms containing items or lore tidbits are hidden throughout the game.
Easter Eggs: References to other games, pop culture, and inside jokes are scattered throughout Undertale.
Unused Content

Unused Enemies: Several enemies were programmed but never implemented in the final game.
Unused Items: A variety of items exist in the game's code but are not obtainable through normal gameplay.
Unused Dialogue: Many lines of dialogue were written but never used in the final version of the game.
Unused Rooms: Several rooms were created but ultimately left out of the game.
Merch

Official Merchandise: Undertale has a wide array of official merchandise, including:

Plushies (Flowey, Toriel, Sans, Papyrus, Undyne, Alphys, Mettaton, Asriel, Temmie)
T-shirts
Posters
Stickers
Keychains
Pins
Mugs
Soundtrack Vinyls
Art Books
Fan-Made Merchandise: A large community of artists and creators produce a vast amount of fan-made Undertale merchandise.

Oh shi-