Passage to Upper Stratum

Passage to Upper Stratum is a mission in Luminous Avenger iX 2, unlocked after clearing Volcano Block and Jungle Block. This is where the second Ypsilon fight takes place.
After entering the Grave Pillar and attempting to ascend, Copen and co. encounter a large bulkhead blocking the way with two empty keyholes, one purple and the other yellow. After seeking out and forcefully acquiring the keys from two Gravekeepers, he and Lola tell the others to stay back while they head through first, not knowing what might be behind it.
The Grave Pillar stage that makes you realize the true shape of it. The Passage to Upper Stratum is a stage linking the blocks between themselves, and compared to the previous stages, the backgrounds and gimmicks become way simpler. The structure becomes more mechanical in feeling, a research facility tower; you can feel the original shape of the tower.Dengeki Online article
==Enemies==
Image	Enemy
 	Ypsilon (boss, normal mode)
 	The Creator (boss, hard mode)
 	Road Razor
 	Axeman
 	Hover Drone
 	Dark Mine
 	Cyclops D
 	Bomber
==Rank and Time Requirements==
*May not be accurate
===Normal===
Rank	Score 	Minimum Kudos needed	Kill points needed
X 	900,000	6400 	29,000
Stars 	Time	Rec. Time
3 Stars (x1.5)	5:40	4:40
===Hard===
Rank	Score 	Minimum Kudos needed	Kill points needed
X 	500,000	3090 	29,000
Stars 	Time	Rec. Time
3 Stars (x1.5)	6:00	4:20
==Emblem Locations==
Image	Notes
 	False wall.
 	
 	
 	
==Gallery==
Dacite Vespa bulkhead locked.jpg|The bulkhead when it's first encountered
Dacite_Vespa_bulkhead_unlocked.jpg
Corridor 1.jpg
Corridor 2.jpg
Corridor 3.jpg
Corridor 4.jpg
Corridor Y.jpg|"Defeating you! Overcoming you! Those are my commands!"
Ypsilon Dancing Wind.jpg
==References==
==Luminous Avenger iX 2 Navigation==
Category:Missions
Category:LAiX 2 Missions
Category:Luminous Avenger iX 2