Kingdom Hearts Challenge Day 21: Organization member you would get rid of

Xaldin

Not only was his boss fight really annoying, he was one of the rudest co-workers that Roxas had to deal with in 368/2 days. His real character Dilan was never very friendly in Birth by Sleep either.

Belle won this fight more than I could.

Kingdom Hearts Challenge Day 14: Favorite Magic

Limit Break from  Kingdom Hearts 368/2 days

I don't know if this counts as magic, but I liked using Limit Break. Especially when Roxas is surrounded by heartless. The bright light did a lot of damage and evened the odds.

D link (WayFinder)  in Birth by Sleep

I loved how each link had different features and was dressed up like the character you were linked to. It was a cool way to battle.

Kingdom Hearts Challenge Day 13: Favorite Summon

Stitch!

I love Stitch, and he always made battles more fun in Kingdom Hearts. His guitar skills are amazing! He also had some cool powers you could tap into during Birth By Sleep. His side story with Terra, Aqua and Ven was really heartwarming and showed a softer side of his character.

Kingdom Hearts Challenge Day 8: Most difficult boss battle

Terranort

This is when Xehanort possesses Terra's body and Terra has to fight to get it back. Not only was it a scary and unexpected boss fight. It was frustrating because you had to defeat Xehanort as yourself, then when he possesses Terra's body, you have to fight that battle again, and never die, not once.

A runner's up is definitely the boss battle between Ventus and Vanitas. He was a difficult boss to pin down, and when he melds into darkness,  it's nearly impossible to keep track of him. Once again you have to fight Vanitas twice, and not die the second time to reach a final boss fight using only link commands without dying.

Kingdom Hearts Birth by Sleep had some of the most difficult boss battles.

Kingdom Hearts Challenge Day 6: Favorite Land(s)

You walk in a moonlit garden or a path of clouds in the sky. Everything is music. Every sound you make. Every battle you fight. Every dreameater you see. Even you become music, making sounds like the clash of symbols when you fight. As you go further, you reach a new area. You are in the twilight wood or a windy glen. In the twilight wood, you walk on a path of leaves in order to reach the winter tundra. In the windy forest, you ride wind spirals and change the area from a rain storm to calm spring by playing a small piece of music . Mythical, musical dream eaters surround you. Finally you reach the fields, with Greek pagodas and barrels of grapes. In short, this world was so beautiful.

It's always sunset here. Calming music plays while you walk on a cobblestone  road and investigate the seven mysteries of Twilight Town's Sunset Plaza. You can ride the train there and back, or watch it from the top of Sunset Hill. Or you could sit on the roof of the clock tower and watch the constant sunset, sharing stories and ice cream with friends. There's even a spooky mansion to explore, hidden in a forest outside of a hole in the stone wall near the tram station.

This castle has everything! A great stone bridge with gargoyles guards the front door. The courtyard garden is filled with statues. A secret passage grants a way through the castle and towards the roof.  A hall of knights in armor greet you on your way towards the forbidden west wing. The great ballroom is all dressed up and ready for the main event.

 One more favorite (especially in Birth by Sleep)

One word: Fountains!

Something Blue 11

The kind and caring Aqua is the driving force of Kingdom Hearts Birth by Sleep. Best friends with Terra and Ventus, her task is to maintain balance between light and dark. She creates the star charms that hold their friendship together and tries her hardest to look at events from a wiser perspective.

A tiny light
Wandering the dark
Hoping for a path
An illuminating spark
Fighting endless battles
Rain against the storm
Driven by a purpose
Giving light its form
While both friends sleep
And the master prays
The wanderer journeys
For countless days
As time flies by
Storm and ocean may reunite
Through sea and sky