Loudmouth

The Crescendo is an enemy from Kingdom Hearts: Chain of Memories and Kingdom Hearts II.

Journal Entry
''A hoping, horn-like Heartless. It's a bothersome foe that can honk and call other heartless.''

Card
See: Crescendo (Enemy Card)

Journal Entry
''It restores the HP of surrounding enemies. Use Heal Stomp with the right timing to heal the party.''

When attacked, it may call for help, so be sure to defeat it immediately.