Smasher

Smasher is the mini-boss of Face Shrine, the sixth dungeon in The Legend of Zelda: Link's Awakening. It appears to be a black and white sphere with one eye and an antenna protruding from its top.

Strategy
Smasher's method of attack is to hurl a heavy ball at its opponents, trying to knock them down. Link, through the use of the Power Bracelet, is able to pick up the ball and throw it back at Smasher until it is destroyed.

Oracle of Ages
Smasher makes a return appearance in The Legend of Zelda: Oracle of Ages, where Link must fight it in the Crown Dungeon.