Spiderchest

Chest Spider (チェストスパイダー) is an Unversed in Kingdom Hearts Birth by Sleep. As the name implies it comes out of large treasure chests in the multiple worlds Terra, Ventus, and Aqua visit. When defeated, the Chest Spider will drop a lot of munny, as it is a chest. Strangely, it seems to be related to the Final Fantasy enemy, Mimic, who also takes the shape of a treasure box in order to surprise anyone who tried to open it.

Design
A Chest Spider's body, true to its name, resembles a red treasure chest with black highlights and a black lock. It has yellow "teeth" lining the lid of the chest and two white, zig-zagging, bladed arms. The Unversed's spherical, black head is protected inside the chest. Its red eyes are set in a happy expression and the Unversed symbol adorns the top of the chest's lid.

Strategy
A Chest Spider, while large, is quite easy to defeat. Its main attacks are to stab players with its legs or burrow underground to attack from below. Command Style and Shotlock are good for dealing with multiple Spiders. Magnet magic is also effective.