A planet designated for Irken training, Devastis is likely one of the many planets that was once a normal planet but got conquered by the Irken Empire. Now Irkens go there to go the military academy and to take the test to become a member of the Irken Elite. Zim caused a major blackout on an entire half of Devastis when he used a Maim Bot on a snack machine. The blackout trapped the Irken Tak in a test booth. Tak later went to the Irken Control Brain on Devastis hoping to get another chance to take the test.
