Flash Barrel

A Flash Barrel (フラッシュバレル, Furasshu Bareru) is a barrel that contains the red flare inside use to signal Thriller Bark. It floats on the ocean at the entrance of Florian Triangle, waiting for any passing ships. Whenever opened it will shoot out the red flare and they would immediately be supervised by Perona's Ghost Network. This was a clever trick to pull sailors to Thriller Bark.