Mini Mini no Mi

The Mini Mini no Mi is a Paramecia-class Devil Fruit allows the user the become smaller than their actual size. The fruit was eaten by Bruce.

Strengths and Weaknesses
As shown by Bruce, the main strength of this Devil Fruit is for the user to shrink in size for suitable situations like evading enemy attacks and to retaliate.

This fruit doesn't seem to have any specific weaknesses, aside from the standard Devil Fruit weaknesses.

Usage
For a giant like Bruce, he is capable of shrinking down to a smaller size, making it easier for him to interact with humans and smaller creatures, as well as gain flexibility in terms of avoiding attacks.

Trivia

 * This fruit is one of the two Devil Fruits that are video game-only (the other being the Pasa Pasa no Mi).