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Not to be confused with Bulky Bob-omb.
The Thousand-Year Door enemy
Sprite of a Bob-ulk from Paper Mario: The Thousand-Year Door.
Location(s) Pit of 100 Trials (Levels 92, 93, 96, 97)
Max HP 10
Attack 4
Defense 2
Moves Power up (no effect), Defense Up (Defense Boost +3), Power Up (Power Boost +3), Charge Up (ATK+9), Explosion (4, 7, or 16)
Items None
Coins 0 - 5
Log A really, really big Bob-omb that explodes after 4 turns. Take it out before then or you'll be peeling your lips off the ceiling!
Misc. stats
Level 34
Exp. points 2
Sleep? 70%
Dizzy? 50%
Confuse? 50%
Tiny? 70%
Burn? 100%
Freeze? 90%
Stop? 55%
Soft? 85%
Fright? 60%
Gale Force? 10%
KO? 20%

That's a Bob-ulk. That's…easily the biggest Bob-omb I've ever seen! Max HP is 10, Attack is 4, and Defense is 2. It won't attack, but once its fuse is lit, it'll explode after a while. So the problem to beat it before it goes off. I mean, its bomb attack has a power of 16! That's no joke. Seriously, watch out for that. Just go all out to beat it. Pull out all the stops. Or you could just set it off early with fire or explosions. Your call.


Bob-ulks are purple Bob-ombs that are the strongest and most armored variant of Bob-ombs. Their name is word play on "bulk", meaning very large. Bob-ulks are solely found in Paper Mario: The Thousand-Year Door's Pit of 100 Trials. Goombella says that they are the biggest Bob-ombs she has ever seen, despite their slightly weaker variant, Bulky Bob-omb, appearing slightly larger in the Tattle Log.

Just like their relatives, Bob-ulks always go through the following pattern of moves:

  1. Lights its fuse
  2. Increases defense by 3
  3. Increases attack by 3
  4. Charges attack by 9
  5. Explodes

Also like their relatives, Bob-ulks can be instantly detonated with any fire, lightning or explosive attack (except Clock Out), dealing 4 damage plus any accumulated boosts to Mario, his partner, and all other enemies. The explosion creates a chain reaction with other Bob-ulks. Their explosions cannot be Guarded or Superguarded.

Freezing them temporarily stops their attack progression, allowing previous buffs to wear out before new ones are added, and it will also put out their fuse, forcing them to waste a turn reigniting it. Stopping them in time also halts attack progression.

Names in other languages[edit]

Language Name Meaning
Japanese ジャイアントボム
Jaianto Bomu
Giant Bomb
French Giga Bob-omb -
German Megab-omb
Italian Mega Bob-omba Mega Bob-omb; shared with King Bomb
Spanish Bombobeso Bomb-obese