Hyper Bomb

Hyper Bomb (ハイパーボム) is Bomb Man's power. In the cartoons, its firing mechanism has 2 circles, probably to hold the bombs. When Mega Man uses this weapon, he throws bombs in a small arc (so it takes some practice to get used to throwing them). There's a small time delay between when a bomb is thrown and when it explodes, but it has a decent-sized explosion that damages or destroys anything within the blast.

Robot Masters And Bosses Weak Against Hyper Bomb

 * Guts Man: Mega Man
 * Copy Robot: Mega Man
 * Buster Rod. G 1: Mega Man: The Wily Wars
 * Mega Water. S: Mega Man: The Wily Wars
 * Hyper Storm. H: Mega Man: The Wily Wars
 * Wily Machine 3: Mega Man: The Wily Wars
 * Ice Man: Mega Man: Powered Up

Robot Masters And Bosses That Can't Be Attacked By Hyper Bomb

 * Yellow Devil: Mega Man
 * Wily Machine: Mega Man
 * Buster Rod. G 2: Mega Man: The Wily Wars
 * Magmard Serpent: Mega Man: The Wily Wars
 * Wily Machine 1 and 2: Mega Man: The Wily Wars