Tip by bareullah How to Unlock a Boss Battle For the corruption level 3 Holosimulation, if you manage to eliminate all the corruption, you will then get a shot at a boss battle against Rancor. LEGO Star Wars: Castaways TIPS MORE TIPS How to Easily Complete the Dance Party Weekly Mission What the Progress Bar mean in the Holosimulation Lobby How to Create/Join Races in the Island Hub The Importance of Pink Bricks Efficient Way to Explore the Island Hub