Turtloid S (タートロイド S) is an invincible turtle enemy with a spiked shell that appears in Volteel Biblio's Sunken Library stage in Mega Man Zero 3. It only floats stationary in the water as an obstacle. When attacked, it will withdraw in the shell and turn over, allowing Zero to use it as a platform to avoid the electricity of the water. It will turn back to normal after a time, hurting Zero if he stands too long on it.

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