Encounter map
Where to find Delirium
Set encounterThis fight is reached on the The Void route. It is a set encounter, so it does not appear in the random floor boss pools.
See the The Void and Delirium routeFight guide · The Void
How to fight Delirium
An unpredictable large-room fight built around rapid teleports, projectile patterns, and copied boss forms.
Before entering
Enter with spare health and a way to deal damage while moving; the fight gives fewer reliable stationary openings.
- 1
Main form
Watch for: Delirium teleports around the room while sending overlapping white projectile patterns outward.
Try: Keep the boss and nearby shots in view, and change position as a new pattern begins.
- 2
Transformations
Watch for: It can copy bosses encountered during the run while keeping its own health pool.
Try: Identify the copied boss before committing to a dodge; familiar attacks may arrive from a new position.
- 3
Fast transitions
Watch for: Teleports and transformations can happen in quick succession, especially under heavy damage.
Try: Leave yourself room to react between bursts instead of staying directly beside a form.
Completion mark
Delirium character rewards
Defeating Delirium records the Delirium mark for the character you are playing. Check the clear level beside each reward. Some require Hard mode. The reviewed list has 33 direct reward entries tied to this completion target. These are achievement unlocks, not items dropped by the boss.
Multi-mark and roster-wide achievements appear in the completion tracker.
Game-file referenceRaw data and official artEntity fields, portrait files, and source notes for this boss.
Raw entity values
Health and entity data
- Base HP
- 10000
- Stage HP scaling value
- 0
- Entity ID and variant
- 412.0
- Contact damage field
- 1
These are raw entity fields. Armor, floor scaling, phase transitions, shared health, and scripted waves can make the fight differ from the base HP value.
Asset mapping
Official portrait assets
The Delirium versus-screen portrait comes from the supplied game art. The original filenames are retained below.
- Portrait file
- Portrait_Delirium.png
- Boss-name image file
- BossName_Delirium.png
Source notes
How this record is built
Boss identity and portrait metadata come from bossportraits.xml. Random floor membership, weights, and Double Trouble room IDs come from bosspools.xml. Health and entity fields come from entities2.xml. Fixed story locations and route explanations are reviewed editorial context.