Spark

Very Similar to a Sol (Enemy), but has different appearance and weakness. In A Link to the Past these enemies appear as a flashing ball which clings to groups of pots or blocks.

File:Spark TMC.gifQuote from The Legend of Zelda: The Minish Cap Spark figurine:

"Appears in dungeons. They cling to walls and move quickly. Normal attacks may not work, but the boomerang is pretty effective."