Spoilers ahead for the fifth district's introduction, the effect of an earlier decision and the final encounter.
Stone Passage opens after you defeat the Rift Guardian. The trail brings together stonework, forest, ash and sand. The changing landscape reflects events in the story. All four environments form one route with a single final boss.
The introduction and the route
Create explains what's happening. Zhora or Boris appears with him, depending on an earlier decision. They take part in the introduction, so plan to handle the encounters ahead yourself.
Follow the main route through four areas. It contains 16 groups of four enemies, including skeletons, zombies, slimes and bandits. There are two shops along the way. The 64 enemies describe the layout. You can reach the boss without defeating them all.
The route meter shows distance travelled. After the introduction, approaching the king's arena starts the fight. You don't need to open successive barriers on the way as you did at the Construction Site.
An open passage can still be dangerous. Enemies can keep chasing, and a dense group may leave you little room to move. Check your health and finish shopping before the last section. The entrance to the arena closes when the encounter begins.
The King of the Forgotten
The king uses a sweep, a directed cleave, a skeleton summon and a wave. Stay very close for long enough and he can add a stomp. Pick your moments to approach and keep room to move afterwards.
The warnings on the ground show the attack's area. The standard wave has a gap, while the stomp works differently. Read the pattern on the ground instead of assuming that every circular effect leaves the same escape route.
Below half health the king takes shorter breaks. Leave space to respond before trying another string of attacks. His summoned enemies can get in the way just as you need to move away from the boss.
When victory counts
After the king falls, his death animation and the closing scene play. Let them finish before leaving the district, even if the health bar is already empty.
Winning awards 30 crystals and opens the Neon District. You don't need to find a hidden exit or clear every leftover corner to unlock district six. In the next stage, you'll take control of Cyberpunk.