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Xenosaga II
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 Secret Skills

 

Route	Name	Necessary Item	Place Obtained
Lv 1 > H	Psycho Pocket	Secret Key 1	G2 Campaign 01 Reward
	Break B10	Secret Key 2	G2 Campaign 02 Reward
	Spirit Gain 1	Secret Key 3	Segment Address 06
	EP Regen 1	Secret Key 4	Segment Address 09
Lv 2 > D	Attack One	Secret Key 5	Segment Address 15
	Rare +10	Secret Key 6	G2 Campaign 03 Reward
Lv 2 > F	Poncotsu Beam	Secret Key 7	Dämmerung
Lv 2 > H	Boost One	Secret Key 8	Segment Address 01
	Expansion Pack 1	Secret Key 9	Segment Address 04
	Clear and Serene	Secret Key 10	G2 Campaign 26 Reward
	STA Resist 2	Secret Key 11	G2 Campaign 11 Reward
Lv 3 > A	Safety	Secret Key 12	G2 Campaign 12 Reward
	Limiter Up	Secret Key 13	Labyrinthos
Lv 3 > C	Fast Recovery	Secret Key 14	Ormus Fortress
	Last Revenge	Secret Key 15	G2 Campaign 10 Reward
Lv 3 > E	Fast Combo	Secret Key 16	Segment Address 18
Lv 3 > F	Break B15	Secret Key 17	G2 Campaign 15 Reward
	Rare +30	Secret Key 18	G2 Campaign 33 Reward
Lv 3 > G	Ether Burst	Secret Key 19	G2 Campaign 32 Reward
Lv 3 > H	Point Up10	Secret Key 20	Segment Address 05
	Experience Up10	Secret Key 21	G2 Campaign 14 Reward
	Combo Boost	Secret Key 22	Segment Address 02
	EP Half	Secret Key 23	Segment Address 11
Lv 4 > A	Admonish	Secret Key 24	Omega System
Lv 4 > B	Spirit Gain 2	Secret Key 25	Omega System (via UMN)
Lv 4 > C	Overload	Secret Key 26	Segment Address 10
	ST Double	Secret Key 27	Omega System
Lv 4 > D	Beloved Student	Secret Key 28	Segment Address 17
	Point Up15	Secret Key 29	Industrial Factory
	Experience Up15	Secret Key 30	Industrial Factory
	Abandon	Secret Key 31	Sky Ruins