Show:
Heroes
Villains
Worlds
When did it happen
Other
100
Who is the main hero?
Sora
100
You think he's evil but he's actually possessed
Riku
100
Sora, Kairi, and Riku's homeworld
Destiny Islands
100
Which game is first in chronological order
Kingdom Hearts: Union Cross
100
Who are the 13 darkneses
Organization 13
200
These to Disney characters help out the protagonist.
Donald and Goofy
200
The main villain of number 1 but he's actually a heartless. 
Ansem
200
This world was only in the first one
Deep Jungle
200
In what game do we see Sora, Riku, and Kairi as small children
Kingdom Hearts Birth By Sleep
200
Who are the 7 protectors of light
Sora, Riku, Mickey, Aqua, Terra, Ventus, and Lea
300
Sora's best friends  

(Hint: One is a princess of heart and the other was once evil)

Kairi and Riku
300
The 3 main monster species.
Heartless, Nobody, and unversed
300
This world has been in almost every game so far and is supposed to be in 3
Olympic Collosium
300
In which game do we see Organization 13 first
Kingdom Hearts Rechain of Memories
300
Who are all the princess of heart
Cinderella, Snow white, Alice, Auora, Jasmine, Belle, and Kairi
400
Sora and Kairi's nobodys.
Roxas and Namine
400
Leader of Organization 13 and Ansem's nobody
Xehenort
400
The worlds Sora appears in after his island is destroyed.
Traverse Town
400
In which game do we learn about Axel before he was in Organization 13
Kingdom Hearts Birth By Sleep
400
Who is in Organization 13

Xehanort, Xigbar, Xaldin, Vexen, Zexion, Axel, Demyx, Larxene, Marluxia, Luxord, Saix, Roxas, and Lexaeus 

500
She was forgotten
Xion
500
The person Xehanort took the body of
Terra 

(He's not bad his body was used)

500
This world is your home town in Union Cross
Daybreak Town
500
In which game were Roxas and Namine Born
Kingdom Hearts 

(Kingdom Hearts 1) 

500
Who is the 14th and forgotten member of Organization 13
Xion