Unite

Mecha-Naruto attaches his mechanical body to Naruto, who wears him as sort of a mechanized suite.

Trivia

 * Mecha-Naruto encasing Naruto into itself and how it functions as a suit is reminiscent to Iron Man.
 * Mecha-Kurama does this to Mecha-Naruto in the game Naruto Shippūden: Ultimate Ninja Storm Revolution as their form of the Tailed Beast Mode.