The standard Build-it Box consists of gray frames arranged in the shape of a box. This framework has brown covering on each of its corners. On one side is a yellow computer terminal, and on top of the framework is a bendable gray arm with yellow joints. Connecting its terminal and bar is a white tube. The device itself is as well connected to Tails' laptop.
Features and abilities
Akin to a 3D printer, the Build-it Box has the ability to materialize three-dimensional manifestations of digital entities using matter provided by cartridges. This can include anything from digital characters, to computer viruses, to any imaginable 3D model designed in cyberspace. For digital figures like Nominatus or Miss Tomatopotamus, this machine allows them to manifest themselves as living beings in the real world. Conversely, the machine can de-materialize its manifestations and return them to cyberspace. The entire device is controlled by Tails' laptop.
To make its manifestations more manageable, the Build-it Box has a file-size throttle that controls the physical size of the digital entities its materialize. In the case of Ms. Tomatopotamus for example, the machine can materialize a kitty-sized version of this hippo-proportioned character. Disabling the throttle causes all of its manifestation to assume normal size however.
Created by Tails, the Build-it Box got an upgrade that let it manifest digital entities. Tails showed this to his team by manifesting a miniaturized Ms. Tomatopotamus. Nominatus soon after hacked the Build-it Box and used it to bring himself, Beta and Retro into the real world. However, since the machine's size throttle shrunk the trio when they manifested, the trio would disable this feature. However, this also enlarged Ms. Tomatopotamus, alerting Team Sonic. Nominatus then stole the Build-it Box and began materializing his army and weapons with it, only to get stopped by Team Sonic and Dr. Eggman. Retaking his Build-it Box, Tails used it to return Nominatus' army to cyberspace. He also re-enabled its size throttle to shrink Nominatus and his minions.
When Tails used a miniature Build-it Box to make a bolt for his plane, his friends got him to build a bigger Build-it Box with the one he had so they could make larger and more fun stuff. The team used this extended Built-it Box to make customized cars for each of them.