One Piece chapter 1040 highlighted something interesting about Devil Fruits, that certain Devil Fruits can mimic the abilities of other Devil Fruits.
1. Ope Ope no Mi
The Ope Ope no Mi is a good example of a Devil Fruit that can mimic the abilities of other Devil Fruits. In One Piece chapter 1040, Law uses another move, R-Room, a soundproof room, similar to the one Corazon created with the power of the Nagi Nagi no Mi Devil Fruit (this move Law used to imagine. memory of the deceased brother). This room traps Big Mom inside and makes her powers unable to work.
This ability is so extraordinary that it seems that even the people of the Flower Capital can’t hear the huge explosion that was just made to “bury” Big Mom alive. The size of this explosion felt like it was bigger than the capital Hana, but due to Law’s R-Room, the sound of the explosion was suppressed.
Before that, Law also created a shield in chapter 1010 using the Cortina technique, which is similar to the Bari Bari no Mi’s barrier technique. However, Law was still under pressure from Kaido’s attack, while Bari Bari no Mi’s ability was completely able to counter Kozuki Oden’s powerful attacks. That shows that the shielding ability of Ope Ope no Mi is not as strong as Bari Bari no Mi.
2. Kage Kage no Mi
The Kage Kage no Mi is a Paramecia-type Devil Fruit that grants the user the ability to manifest and control the darkness of living beings, including their own, in both physical and tangible forms.
With the Kage Kakumei technique, Moria implants his own ball on his target, with his shadow inside of them, he is able to control the shape of the target’s shadow. When the shape of the ball is changed, the target’s body will also be changed. For example, Moria can manipulate Oars’ shadow form at will, and Oars’ physical body will be forced to conform to the shadow’s shape.
Or to put it more simply, Moria can implant the shadow of a body into the shadow of an object and freely distort its shape. As seen, when Moria manipulates Remos’ shadow form, Remos’ physical body can stretch like a Gomu Gomu no Mi Devil Fruit eater. Remos was able to use Luffy’s signature techniques thanks to Moria’s ability.
This is a very unique method of using Kage Kage no Mi’s powers.
3. Mochi Mochi no Mi
With a unique ability, the Mochi Mochi no Mi Devil Fruit allows Katakuri to mimic Luffy’s moves.
Mochi Mochi no Mi belongs to the special Paramecia system, it has the characteristics of the Logia system but the essence is still the Paramecia system. The Mochi fruit is highly customizable like the Gomu fruit, and has the same continuous shaping ability as the Bisu fruit. An example is when Katakuri imitated Luffy’s Elephant Gun technique, but his strength surpassed Luffy’s version.