Nightmare (ナイトメア, Naitomea) is a virus in the Mega Man Battle Network series that resemble a shadowy figure whose right hand is a sword. They are only encountered in Mega Man Battle Network 6. According to Director Masahiro Yasuma, they are an evolution of the Shadow virus.^[1]

Nightmares initially appear on the enemies' side of the field in the form of a small whirlwind (they cannot be damaged in this form). After a few seconds however, they will start moving around MegaMan's side of the field, attacking him with a Wide Sword-style attack after three moves; sometimes they will attack MegaMan from behind. Furthermore, Nightmares are immune to everything except Sword-type attacks and Battle Chips or Anti Damage, and are unaffected by holes and panel effects. Because they appear on MegaMan's side of the field, Battle Chips like the MoonBlade are effective against Nightmares.

Nightmare family[]

Nightmare[]

Nightmare is a purple variant with red markings.

Blackmare[]

Blackmare (ブラックメア, Blackmare) is a blue variant with red marikings.

Darkmare[]

Darkmare (ダークメア, Darkmare) is a red variant with green markings.

NightmareSP[]

NightmareSP (ナイトメアＳＰ, NightmareSP) is a black variant with yellow markings.

RareNightmare[]

RareNightmare (ナイトレア, RareNightmare "Nightrare") is a green variant with light purple markings.

RareNightmare2[]

RareNightmare2 is a yellow variant with white markings.

Virus stats by game[]

Mega Man Battle Network 6 []

Nightmare		HP:	100	Element:		Damage:	40
		Dropped:	Summon Black 1
		Location:	Underground 1/2, Pavilion Comp 2/4, Guide Panel Comp
Blackmare		HP:	140	Element:		Damage:	60
		Dropped:	Summon Black 2
		Location:	Principal's Office Comp
Darkmare		HP:	180	Element:		Damage:	100
		Dropped:	Summon Black 3
		Location:	Graveyard
NightmareSP		HP:	220	Element:		Damage:	120
		Dropped:	N/A
		Location:	Event Battles
RareNightmare		HP:	180	Element:		Damage:	80
		Dropped:	Summon Black 2
		Location:	Undernet 2
RareNightmare2		HP:	260	Element:		Damage:	120
		Dropped:	Summon Black 3
		Location:	Undernet 2

Battle Chips[]

Deleted Nightmares yield the Summon Black (サモンブラック, Samon Burakku) series of Battle Chips. These chips summon a Nightmare virus from any hole on MegaMan's side of the field, which attacks the nearest enemy with a Wide Sword type attack. These chips are non-elemental.

ID	Battle Chip		Description	Attack	Element	Code	MB
Standard Chip 100		SumnBlk1	Summon a Nghtmare attack!	160		E,I,P	30
Standard Chip 101		SumnBlk2	Summon a Nghtmare attack!	200		H,O,V	40
Standard Chip 102		SumnBlk3	Summon a Nghtmare attack!	260		W,Y,Z	46

References[]