Can you guess the Kingdom Hearts game with ONLY audio?

Today's challenge: try to identify the Kingdom Hearts game, character, and world using only your ears. For those who want an extra challenge, also try to guess the enemies in the clip, though this one isn't always as doable.

0:00 - Rules and Example
1:10 - Round 1
2:11 - Round 2
2:56 - Round 3
3:56 - Round 4
4:55 - Round 5
5:49 - Round 6
6:44 - Round 7
7:48 - Round 8
8:36 - Round 9
9:32 - Round 10
10:25 - Round 11
11:16 - Round 12
12:04 - Round 13
12:53 - Round 14
13:34 - Round 15
14:17 - Round 16
15:18 - Round 17
16:00 - Round 18
16:37 - Round 19
17:25 - Round 20
18:21 - Bonus Round 1
19:30 - Bonus Round 2
20:13 - Bonus Round 3
21:17 - Secret Bonus Round