The angry machine was a device utilized by Wikyochee, a ten-year-old member of a non-Human species. Although generally agreeable, Wikyochee would occasionally slip into a more violent temper. The angry machine he possessed would calm his body down and allow him to return to a more affable state.
Behind the scenes
The angry machine was created through the 1996 "Design An Alien" competition by a Star Wars fan named Aaron Reeder, who was eleven years old at the time. In Reeder's entry for Wikyochee, which was published in the seventh issue of the Star Wars Galaxy Magazine as an "honorable mention," the machine was mentioned as a part of his blurb for the character. Leland Chee, who maintains the Holocron continuity database, later confirmed that published "Design an Alien" material was considered canon within the Star Wars Legends continuity.