Terrorpin

A turtle that lives in the Palace of Darkness. Beating it takes the Magic Hammer, so until Link has that, just keep running. A blow from the Magic Hammer flips it over. Attack while it is on its back to beat it, but be quick, because it rights itself after a while. Using the hammer next to a flipped one also turns it back over.

Its shell is so hard that normally you cannot hurt it at all. Shake the ground with the hammer and it flips over, and then you can attack.