Cymbal Monkey

The Cymbal Monkey is an Emblem Heartless that is found in Kingdom Hearts 358/2 Days. It likes to hide within false treasure chests, and pop out when they are opened.

Kingdom Hearts 358/2 Days

 * Twilight Town
 * Beast's Castle
 * Olympus Coliseum
 * Agrabah

Kingdom Hearts 358/2 Days
Raw noise is the chief weapon of these mid-sized Heartless which lurk in treasure chests. Be sure to block their sound bullets.

TIP: Illusion-based attacks like these bullets can flip-foot you, which reverses the directional controls for basic movement.

Trivia
The treasure chests that they (and the Tricky Monkey) hide in are the only treasure chests seen in Mission Mode, thus making them easy to avoid.