Complete the earlier Hoenn challenges, including the Knuckle Badge. Battle trainers as you meet them. Reset from the entrance to start the puzzle afresh.
Puzzle Guide
Step on a floor switch to change which electric barriers are active.
The last pressed switch stays down; stepping on that same switch again does not toggle it.
Use another reachable switch when the way ahead is blocked, then continue through the opened lanes to the leader.
Map & Landmarks
Starting layout. Switches, moving objects and random puzzles can change during play. Landmark numbers are not a walking order.
The leader is in this room. Select a numbered landmark for its details.