Sentrobe

Skyward Sword

Sentrobes are flying robots which are armed with a cannon that fires projectiles. Their hull has two large parts on each side of its cannon, presumably making them invulnerable by horizontal sword slashes. Deflecting their attacks with a simple shield smash will result in their defeat. They will not come within reach of Link's sword, so its own attacks must be used against it. Once destroyed, the Sentrobe will drop a large crop of Rupees. It was probably made by the same civilization that built the Lanayru Mining Facility as a security robot.

Sentrobe Bomb

The Sentrobe Bombs are small sphere shaped objects with spinning propellers on top. Two are sent out at a time by the Sentrobe, one with a blue vertical line and one with a horizontal line across their bodies. Link must slash the bombs in their respectable directions using his sword. If he waits too long, the bombs will explode in his face, dealing damage. The Sentrobe Bombs are quite small and will float in front of Link's face until destroyed.