This is discussion archived from a time before the current discussion method was installed.
MCE my fourth trope article. Planing to set up a a redirect from 'swarm of one' or 'battle group of one' at one point.
- There's an alien from Men In Black II who starts out looking like a single tall humanoid. But when it begins to fight Agent Jay, it turns into five or six smaller aliens that fly around and attack Agent Jay by dive-bombing him.
...I don't think the above counts, as the copies were just under his robe, not a part of a whole...