"Welcome" (In Different Languages)
Kim! (Dictator? Or 90's Sitcom Character?)
To Room "One" (Mr. Joe's favorites/least-favorites)
"Three" (Final Chapters of Movie Trilogies by Franchise)
"Two" (Nintendo Sequels by Franchise)
100

"¡Bienvenido!"

Spanish

100

Being the master of diplomacy that he is, in 2017, President Trump dubbed this "Supreme Leader" of North Korea, seen here, as "Little Rocket Man." (But all was well when he fed Trump's ego with compliments, as well as fed him cake, in which Trump spent at least 3 minutes explaining how beautiful of a cake it was during a national broadcast interview)

Kim Jong Un 

100

"Room 101" is where are forcibly brought by agents of "Big Brother," as you face your deepest fears in order to confess everything, in this this 1944 novel written by George Orwell (As I have brought it up many times, it's my favorite book)

"1984"

100

1983: "Return of the Jedi"

"Star Wars"

100

1998: A follow-up to this franchises, "Red and Blue," came, "Yellow"

Pokemon

200

"Benvenuto!"

Italian

200

"Kimmy Gibbler" was the annoying neighbor in this 90's sitcom
 

"Full House"

200

In 6th grade, I played the "CD" of "And Justice for All" so much that it cracked, with my favorite song on the album being "One," recorded by the heavy metal band seen here

Metallica

200

2003: "The Return of the King"

"The Lord of the Rings"

200

1987: "The Adventure of Link"

The Legend of Zelda"

300

"Willkommen!"

German

300

It's a shame he was so talented in his day, because this former NBA legend got a lot flack for his 2014 trip to North Korea, where he cozied-up/ developed a friendship with the country's Supreme Leader

Dennis Rodman

300

As I've mentioned, I have a VERY small list list of bands/artists I dislike (Sorry, Joyce... I know we got off on the wrong foot), but "one" of them, with their 1991 single "One," are the Irish rock band seen here

U2

300

2007: "At World's End"

"Pirate's of the Caribbean" 

300

1988: Characters such as "Birdo," "Shyguy" and "Sniffit" made their debut in the sequel to this video game franchise

Super Mario Bros

400

"ようこそ" ("Yōkoso")

Japanese

400

"Kimberly Hart" was the "Pink Ranger" in this 90's TV show

"Power Rangers"

400

Although "Heart of Glass" is one of my favorites, I'm still a big fan of this group's, "One Way or Another"

"Blondie"

400

1995: "With a Vengeance" 

"Die Hard"

400

1991: "Return of Samus"

"Metroid"

500

مَرْحَباً ("Ahlan Bik")

Arabic

500

With his citizens brainwashed into believing his many, preposterous claims (such as the ones where he invented the "hamburger,"  or when he obtained the best golf score in history, with 11 "hole-in-ones" on an 18 Hole, PGA course) he's the former leader/father of the current leader of North Korea seen here

*BONUS!* (+200 points for anyone who can tell me which state the hamburger was actually invented in...)

Kim Jong-Il

500

In terms of the name of the category, I'm not sure... With their 1997 hit "One," they fall into the "So bad it's good category" that's ripe for parody, they're the band seen here

Creed

500

1985: "Return to Thunderdome"

"Mad Max"

500

1995: "Diddy's Kong Quest" 

"Donkey Kong Country"