Artwork of a Bob-omb from Mario Party: Star Rush.
|Article on Super Mario Wiki||Bob-omb|
|“||When grabbed and thrown at an enemy, this item explodes, but if left alone, it will start walking around until its timer reaches zero...||”|
|—Super Smash Bros.'s instruction manual|
Bob-ombs made their debut in the Japan-only game Yume Kōjō: Doki Doki Panic (repurposed as Super Mario Bros. 2 for international markets) as a common enemy, and have become a common enemy in later Mario games. They are bomb-like enemies with simple eyes that feature two little legs and a wind-up key on the back.
Bob-ombs simply walk around aimlessly and explode after a short time. Jumping on one (except in Super Mario Bros. 2) causes it to become immobile, but it will also cause it to explode after a short time. In later Mario games, jumping on one can cause it to remain stationary without exploding. If they are left alone for too long, however, they will become mobile again. In either case, an immobile Bob-ombs can be picked up and thrown, defeating enemies and destroying blocks with its explosion, which can also damage the player. If it is not thrown quickly enough, the Bob-omb explodes on its own, also damaging its holder.
In Super Mario 64, Bob-ombs react to Mario if he comes close enough to them by igniting themselves and chasing after him. They can also be grabbed, and when thrown they explode immediately upon coming into contact with anything.
As an item
Bob-ombs can be picked up by any player and subsequently thrown at opponents. Being an explosive, the item can easily inflict large damage and knockback to other players, but it can also potentially harm the attacker. Bob-ombs also explode if they are simply hit by an attack.
When a Bob-omb is held by a player for a while, it will begin flashing red, and shortly after will automatically explode in the holder's hands. While it is flashing red to signify its imminent detonation, it will be more powerful than usual, but it is also close to exploding, making for a risk-reward scenario. A held Bob-omb can also be detonated in the holder's hands if they are attacked and the attack hits the Bob-omb.
If a Bob-omb is not picked up, after a while, it will stand up and begin to walk back and forth on the platform it spawned on, turning around at edges. In this state, it will explode if it walks into a player. In Super Smash Bros. 4, it is possible to pick up the item after it starts walking. If it has not exploded after a brief period of walking, it will stand still while flashing red, and then explode, causing damage and knockback to anyone nearby. In SSB4, if a Bob-omb is close to any fighters, it will walk towards them when it starts moving, making it more dangerous than in previous games.
In Super Smash Bros. Ultimate, Bob-ombs will meteor smash opponents when thrown downward. Otherwise, the knockback is diagonally upward as with previous installments. In addition, Bob-omb explosions will no longer harm the user. Much like Gooey Bomb before it explodes, characters will have a surprised look if Bob-omb is about to explode near them.
The Bob-omb is also one of the various unusual items Peach can pluck via her Vegetable special move. The chance of her plucking a Bob-omb is approximately 1/232 (0.43%), but in all games she has appeared in, it can potentially act as her most powerful attack.
In Sudden Death
From Melee onwards, if a Sudden Death match lasts for too long and a winner hasn't been announced, Bob-ombs will begin to fall from above the stage, instantly exploding upon striking players or the stage. They are intended to end a match more quickly, but can still be grabbed in midair. These Bob-ombs can be avoided by camping in certain places on some stages, but on most stages there is no completely safe position that can be occupied indefinitely. They can also be avoided by stalling on edges, but this also cannot be done indefinitely except through planking. They cannot be absorbed or reflected.
The falling Bob-ombs do not appear in Super Sudden Death.
|Up tilt throw||37%||33%||30%||33%||30.6%|
|Down tilt throw||31%||34%||25%||25%||30.6%|
|Forward smash throw||40%||35%||35%||35%||33.5%|
|Up smash throw||40%||37%||31%||36%||30.6%|
|Down smash throw||31%||38%||25%||25%||30.6%|
|Air side tilt throw||38%||32%||33%||32%||31.6%|
|Air up tilt throw||39%||33%||31%||33%||30.6%|
|Air down tilt throw||40%||34%||30%||30%||30.6%|
|Air side smash throw||40%||32%||33%||32%||33.5%|
|Air up smash throw||41%||33%||31%||33%||30.6%|
|Air down smash throw||40%||34%||30%||30%||30.6%|
In Smash Tour
The Bob-omb appears as a red trophy item. When used, the player will start the battle holding a Bob-omb.
- These little guys are just what they appear to be: walking bombs. Pick one up and hurl it for an incredibly potent attack. If no one picks them up, Bob-ombs light their own fuses and start wandering around armed and dangerous. In Super Mario 64, Bob-ombs chased Mario down once they noticed him. Pink Bob-ombs are nice and capable of speech.
- Super Mario Bros. 2 (10/88)
- A mobile bomb with a fuse on its head. It can be picked up and thrown as a powerful explosive, but if no one grabs it, it will tire of waiting and start wandering, then detonate whenever it likes. Its power and unpredictability make it an accident waiting to happen. In sudden-death matches that go on too long, Bob-ombs rain from the sky to move things along.
- : Super Mario World
- : Super Mario 64
- This enemy lacks any kind of subtlety—a fuse on its head, a slowly turning key in the back, and two short legs to carry its little bomb body. You can figure out what happens next. When a Bob-omb starts flashing, you better start running!
- : Super Mario Bros. 3 (02/1990)
- : New Super Mario Bros. U (11/2012)
- A bomb for a body, burning fuse on top, two little legs and a wind-up key spinning away on the back... We probably don't need to tell you what's going on here. Now, that doesn't happen too often! Then again, who knows? Maybe some people will look at a Bob-omb and think it's an eight ball having an identity crisis.
- : Super Mario Bros. 3 (08/1991)
- : New Super Mario Bros. U (11/2012)
The Bob-omb appears in Ultimate as an Advanced-class support spirit.
The Bob-omb Spirit Battle uses a Kirby puppet fighter and is fought on the Mushroom Kingdom stage. During the battle, the Bob-omb appears as the item while Kirby's throwing-type items have increased power. Also, Kirby has increased move speed, referencing how the Bob-ombs will run at the player in later Super Mario games.
|50||Bob-omb||★★||1||Bob-omb Equipped||Super Mario Series|
In addition to the above, equipping the Linde, Paz Ortega Andrade, Bomb Man, or Risky Boots support spirits will give the player a Bob-omb at a start of their stock.
|628||Linde||★★||1||Bob-omb Equipped||Fire Emblem Series|
|767||Paz Ortega Andrade||★★||1||Bob-omb Equipped||Metal Gear Solid Series|
|879||Bomb Man||★★||1||Bob-omb Equipped||Mega Man Series|
|1,297||Risky Boots||★★||1||Bob-omb Equipped||Shantae Series|
Names in other languages
- Bob-ombs also appear as enemies in several games of The Legend of Zelda series, where Toon Link could use them to destroy obstacles and other enemies prior to his appearance in Brawl.
- The noise Bob-ombs make when they wander in Melee onward resembles the noise Green and Red Shells made in Super Smash Bros..
- In Super Smash Bros., using Fox's Reflector on a walking Bob-omb will make it one-hit KO him. Alongside the Home-Run Bat, it is the only item in the game which can perform a one-hit KO.
- In Super Smash Bros. 4 and Super Smash Bros. Ultimate, a walking Bob-omb can be reflected. This Bob-omb will not explode upon contact with the owner of the reflector until it turns around, but will still explode for teammates. 
- In Super Smash Bros. for Wii U, CPUs will have odd behavior when they happen to hold a Bob-omb; they may either throw it as soon as they pick it up (which is dangerous) or go to a random location and never throw the Bob-omb, most likely leading to their death. This erratic behavior also happens in Training Mode with CPUs that are not in "Attack" mode.
|Items in Super Smash Bros. (64)|
|Normal||Beam Sword · Bob-omb · Bumper · Fan · Fire Flower · Green Shell · Hammer · Heart Container · Home-Run Bat · Maxim Tomato · Motion-Sensor Bomb · Poké Ball · Ray Gun · Red Shell · Star Rod · Starman|
|Containers||Barrel · Capsule · Crate · Egg|
|Items in Super Smash Bros. Melee|
|Normal||Barrel Cannon · Beam Sword · Bob-omb · Bunny Hood · Cloaking Device · Fan · Fire Flower · Flipper · Food · Freezie · Green Shell · Hammer · Heart Container · Home-Run Bat · Lip's Stick · Maxim Tomato · Metal Box · Motion-Sensor Bomb · Mr. Saturn · Parasol · Poison Mushroom · Poké Ball · Ray Gun · Red Shell · Screw Attack · Star Rod · Starman · Super Mushroom · Super Scope · Warp Star|
|Containers||Barrel · Capsule · Crate · Egg · Party Ball|
|Items in Super Smash Bros. Brawl|
|Normal||Assist Trophy · Banana Peel · Beam Sword · Blast Box · Bob-omb · Bumper · Bunny Hood · Cracker Launcher · Deku Nut · Dragoon · Fan · Fire Flower · Food · Franklin Badge · Freezie · Golden Hammer · Gooey Bomb · Green Shell · Hammer · Heart Container · Home-Run Bat · Hothead · Lightning Bolt · Lip's Stick · Maxim Tomato · Metal Box · Motion-Sensor Bomb · Mr. Saturn · Pitfall · Poison Mushroom · Poké Ball · Ray Gun · Screw Attack · Smart Bomb · Smash Ball · Smoke Ball · Soccer Ball · Spring · Star Rod · Starman · Super Mushroom · Super Scope · Superspicy Curry · Team Healer · Timer · Unira · Warp Star|
|Containers||Barrel · Capsule · Crate · Party Ball · Sandbag · Rolling Crates|
|Key · Stock Ball · Trophy Stand|
|Collectibles||CD · Coins · Sticker · Trophy|
|Other||Smash Coins and Bills|
|Red items||Back Shield · Black Knight · Bob-omb · Boo · Bunny Hood · Daisy (Baseball) · Darkrai · Dixie Kong · DK Barrel · Energy Tank · Franklin Badge · Hammer · Home-Run Bat · Kat & Ana · Latias & Latios · Magnus · Majora's Mask · Mecha-Fiora · Metal Box · Mr. Resetti · Mr. Saturn · Ore Club · Phosphora · Plasm Wraith · Poison Mushroom · Rocket Belt · Sidestepper · Steel Diver · Super Mushroom · Super Scope · Ultimate Chimera · Wolfen · X Bomb|
|Blue items||Ashley · Boss Galaga · Bus to the City · Chain Chomp · Dillon · Doc Louis · Excitebike · Ghosts (Luigi's Mansion) · Great Fox · Isabelle · POW Block · Riki · Snorlax · Super Star · Tetra · Timmy & Tommy · Tingle · Yellow Wollywog · Zinger|
|Green items||Porky Minch · Proto Man · Substitute Doll|
|Random events||Banzai Bill · Flying Man · Iridescent Glint Beetle · Kamek · Koffing · Metal Face · Metroid · Nabbit · Reaper · Ridley · Souflee · Tac · Yellow Devil|