Shell

The term shell could refer to any of the following enemies or treasures:
 * Enemy
 * : a bivalve enemy that is comprised of two shells.
 * : an enemy with a dark blue shell on its behind.
 * : an enemy with a blue shell covering the front of its body.
 * : a winged Joustmite with a red shell instead of a blue one.
 * : a boss from which has a large shell protecting all except the head.
 * : the 1st boss from sporting a crystalline shell.
 * : a Bloyster possessing a blue striped shell on its back.


 * Treasure
 * : a conch shell treasure.
 * : the bottom half of a scallop shell, a treasure.
 * : an amonite fossil treasure.
 * : the top half of a scallop shell, a treasure.