About Bomu Bomu no Mi
The Bomu Bomu no Mi is a Paramecia-type Devil Fruit that allows the user to make any part of their body explode, whether it be their limbs, hair, mucus, even breath or cough, making the user a Bomb Human (爆弾人間, Bakudan Ningen?, VIZ: "Human Dynamite", Funimation: "Bomb Man"). It was eaten by Ganzui, and sometime after its reincarnation it was eaten by Gem, better known by his Baroque Works alias Mr. 5.
The Bomu Bomu no Mi resembles a dark purple apple covered in S-shaped swirls with a "hairy" rope-like yellow stem. The coloration and shape also make it resemble a stereotypical bomb (black and spherical with a stringy fuse). The stem is tattered at the end, making it look like a lit fuse.
The fruit's main strength is that the user can detonate their entire body or limbs in a manner akin to a living human bomb, generating powerful explosive forces that harm anything but the user itself. The explosive quality extends to bodily emissions such as mucus and breath, giving the user the capacity to utilize ranged attacks should they find ways to weaponize those substances.
Strengths and Weaknesses
Gem exploding his arm on Miss Monday.
The fruit's main strength is that the user can detonate their entire body or limbs in a manner akin to a living human bomb, generating powerful explosive forces that harm anything but the user itself. The explosive quality extends to bodily emissions such as mucus and breath, giving the user the capacity to utilize ranged attacks should they find ways to weaponize those substances.
The fruit also grants immunity against all other explosions, including even cannonballs, as well as the ability to evaluate their quality. For example, Gem commented that Usopp's Gunpowder Star tasted bad because he was using low quality gunpowder.
However, it seems that the ability only activates when the user initiates contact with something, or at will, as both Zoro and Luffy have been seen hitting Gem without him exploding. Also, despite the user's explosion immunity, they are not particularly resistant to fire. Other than that, this fruit has no apparent weaknesses aside from the standard Devil Fruit weaknesses.