Bomb

The Morph Ball Bomb, named Bomb in early appearances and the Super Smash Bros. series is a recurring Morph Ball weapon that Samus Aran can use to lay small energy bombs on the ground. Morph Ball Bombs first appear in Metroid.

Metroid appearances
When a Bomb explodes, it does not hurt Samus, but can damage enemies, and blow up objects and obstacles made out of Sandstone and Talloric Alloy, often revealing hidden passageways. They can also be used to activate switches, and propel Samus into the air, a technique referred to as a Bomb Jump.

Normal Bombs are not affected by gravity, and therefore, with the correct timing, the player can execute a double bomb jump, gaining twice the altitude. The difficulty of successfully triggering multiple bomb jumps varies from game to game, and the technique was removed entirely from Metroid Fusion. This was done because multiple bomb jumps are often used as a means of sequence breaking.

In Super Metroid, the Charge Beam can be combined with the Bomb: by charging up and then changing into the Morph Ball, a Five-Drop Bomb is instantly released. The Five-Drop Bombs function similarly to the normal Bomb except that they fall and roll away from Samus under the normal effects of gravity. Also, the explosions of a Five-Drop Bomb cannot be used to initiate a bomb jump. Additionally, a Five-Drob Bomb can be charged by holding the morph button, greatly increasing the velocity of the bombs.

In the multi-player modes of Metroid Prime 2: Echoes and Metroid Prime Hunters, the bombs detonate immediately if an enemy is nearby.

Super Smash Bros. appearances
Bomb is Samus's down special move in every Super Smash Bros. installment, the first being Super Smash Bros. for the Nintendo 64. When used, Samus curls up into her Morph Ball form and drops a bomb from above that detonates after a few seconds or when it hits an item or opponent. If Samus is caught in the explosion, she is sent back into the air, once again in Morph Ball form.

Unlike the Metroid games, these Bombs obey gravity, so Samus cannot do successive bomb jumps to reach greater heights. They still allow her to recover from being knocked off a stage, as the mid-air bomb jump slows Samus's descent somewhat.

In Super Smash Bros. Melee and Super Smash Bros. Brawl, the bomb deals two hits.

In Super Smash Bros. for Nintendo 3DS and Super Smash Bros. for Wii U, the Bomb's first custom version is the Slip Bomb, which trips foes with the explosion and can meteor smash opponents in the air but deals less damage. The second custom move is the Mega Bomb, which drops a larger bomb that takes longer to explode but deals more damage; in addition, only one can be on-screen at a time.

In Super Smash Bros. Ultimate, Bomb is also the down special move of Dark Samus.