Silius is the fifth level of world 9, Edge of Beyond. In this level, the player must escape from a series of deadly rooms aboard a space station. Enemies typically involve gun turrents, robots and floating mines from the original game Journey to Silius, but some R-Type enemies also make appearances. The boss of this level is the Troop of Cannons, a cluster of cannon turrents which block the exit. Its weak point is the core, which responds to any hit with a rapid-fire of bullets. As it takes more damage, diagonal lasers come online to attack the player.