Napalm Bomb

Napalm Bomb (ナパームボム) is Napalm Man's Special Weapon. When Mega Man uses it, he sends out a bomb that bounces about on the ground. It explodes if it kills an enemy on contact, or after a few seconds of no activity. It will change direction if it hits a wall. It is useful against low-lying enemies like Mousuberu. No boss in Mega Man 5 is immune to this weapon.

The Bridge from Mega Man IV and the second Weapons Archive of Mega Man 10 are also able to use the Napalm Bomb.

The odd thing about the Napalm Bomb is that, in reality, napalm is an extremely flammable, sticky substance, which isn't explosive. Real napalm bombs function with this substance, and Napalm Bomb doesn't cause any kind of burning or fire-effect.

Damage Data Chart
Damage values in units in Mega Man 5.

Capacity
It costs one weapon energy unit per bomb in Mega Man 5 and Mega Man IV. With a full weapon energy gauge, it can shoot a total of 28 bombs in Mega Man 5, 19 bombs in Mega Man IV, and 7 bombs in Mega Man: The Power Battle.

Bosses weak against Napalm Bomb

 * Mega Man 5: Stone Man, Dark Man 2
 * Mega Man IV: Stone Man, Toad Man, Hunter
 * Mega Man: The Power Battle: Gyro Man, Yellow Devil
 * Mega Man 2: The Power Fighters: Guts Man
 * Mega Man (Game Gear): Stone Man

Trivia

 * Napalm Bomb (along with Napalm Man) is the reason why Megaman 5 was banned in Vietnam, due to the use of Napalm in the war.