Scuttlebugs have some glitches in their movement.
Scuttlebugs can be raised by using scuttlebug raising (todo: add more info on this).
Since Scuttlebugs update their home whenever they bump into Mario, Mario can make a Scuttlebug walk farther from their intended area than normal by repeatedly strategically bumping into a Scuttlebug at the edge of the radius of its home. Scuttlebug Transportation is used a few times in the A Button Challenge. It is used to save A Presses in Hazy Maze Cave and Big Boo's Haunt.
Scuttlebugs try to remain within a certain radius of their home, and if they move out, they try to go back in. But a Scuttlebug's home can move if Mario bumps into the Scuttlebug. So by strategically repeatedly luring the Scuttlebug to the end of its radius and bumping into it, Mario can transport the Scuttlebug as far as needed as long as the Scuttlebug can walk there. This can be used to move a Scuttlebug almost anywhere within a given room, but cannot be used to move the Scuttlebug into another room.
This is an intentional behavior made by the developers, but it can have unintended consequences. Scuttlebugs will unload if they walk into a wall too far below their home. The intended result of this is that if a scuttlebug falls into a hole where Mario would die, it will unload. The unintended result of this is that if a scuttlebug walks too far down a slope and happens to bump a wall, it will unload.