<s>
Lunar	B-Application
Knights	I-Application
,	O
known	O
in	O
Japan	O
as	O
and	O
abbreviated	O
Boktai	B-Application
DS	I-Application
,	O
is	O
an	O
action	B-Application
role-playing	I-Application
video	I-Application
game	I-Application
,	O
the	O
fourth	O
title	O
in	O
the	O
Boktai	B-Application
series	O
of	O
video	O
games	O
developed	O
by	O
Kojima	O
Productions	O
and	O
announced	O
at	O
E3	O
2006	O
.	O
</s>
<s>
The	O
game	O
was	O
revamped	O
to	O
remove	O
the	O
necessity	O
of	O
using	O
the	O
real-life	O
solar	O
sensor	O
due	O
to	O
player	O
troubles	O
;	O
however	O
,	O
it	O
still	O
retains	O
the	O
functionality	O
if	O
any	O
of	O
the	O
Game	B-Device
Boy	I-Device
Advance	I-Device
Boktai	B-Application
cartridges	O
are	O
inserted	O
.	O
</s>
<s>
Lunar	B-Application
Knights	I-Application
revolves	O
around	O
two	O
characters	O
:	O
Lucian	O
and	O
Aaron	O
.	O
</s>
<s>
Lucian	O
is	O
a	O
vampire	B-Application
hunter	O
,	O
wielding	O
various	O
dark	O
melee	O
weapons	O
.	O
</s>
<s>
He	O
is	O
also	O
imbued	O
with	O
the	O
power	O
of	O
darkness	O
,	O
and	O
can	O
change	O
into	O
a	O
vampire	B-Application
after	O
he	O
builds	O
up	O
a	O
Trance	O
(	O
shortened	O
to	O
TRC	O
in-game	O
)	O
meter	O
by	O
fusing	O
with	O
his	O
Terrennial	O
,	O
Nero	O
,	O
which	O
allows	O
him	O
to	O
absorb	O
life	O
out	O
of	O
his	O
foes	O
.	O
</s>
<s>
The	O
ultimate	O
goal	O
in	O
Lunar	B-Application
Knights	I-Application
is	O
to	O
destroy	O
a	O
number	O
of	O
boss	O
vampire	B-Application
enemies	O
,	O
in	O
which	O
the	O
basic	O
mission	O
is	O
to	O
defeat	O
each	O
of	O
them	O
in	O
their	O
respective	O
dungeons	O
,	O
either	O
by	O
exploiting	O
their	O
elemental	O
weakness	O
or	O
using	O
Trance	O
.	O
</s>
<s>
The	O
player	O
is	O
able	O
to	O
use	O
the	O
Game	B-Device
Boy	I-Device
Advance	I-Device
Boktai	B-Application
games	O
 '	O
sun	O
sensor	O
to	O
play	O
Lunar	B-Application
Knights	I-Application
like	O
the	O
original	O
Boktai	B-Application
games	O
.	O
</s>
<s>
This	O
option	O
gives	O
the	O
player	O
more	O
of	O
an	O
advantage	O
:	O
slotting	O
a	O
GBA	B-Device
game	O
into	O
the	O
DS	B-Device
 '	O
W-Gate	O
allows	O
the	O
player	O
to	O
use	O
extra	O
sunlight	O
by	O
adding	O
the	O
detected	O
sun	O
strength	O
to	O
the	O
amount	O
produced	O
by	O
the	O
in-game	O
weather	O
system	O
(	O
the	O
extra	O
sunlight	O
appear	O
as	O
green	O
blocks	O
in	O
the	O
game	O
's	O
sensor	O
bar	O
)	O
for	O
a	O
certain	O
amount	O
of	O
time	O
.	O
</s>
<s>
Depending	O
on	O
which	O
game	O
is	O
introduced	O
into	O
the	O
W-Gate	O
,	O
the	O
Solar	O
Sensor	O
will	O
cause	O
different	O
effects	O
in	O
Lunar	B-Application
Knights	I-Application
:	O
</s>
<s>
Solar	O
Sensor	O
Version	O
1	O
:	O
By	O
inserting	O
Boktai	B-Application
:	I-Application
The	I-Application
Sun	I-Application
Is	I-Application
in	I-Application
Your	I-Application
Hand	I-Application
in	O
the	O
GBA	B-Device
Slot	O
,	O
the	O
standby	O
character	O
will	O
fill	O
his	O
ENE	O
(	O
Energy	O
)	O
,	O
</s>
<s>
Solar	O
Sensor	O
Version	O
2	O
:	O
By	O
inserting	O
Boktai	B-Application
2	I-Application
:	I-Application
Solar	I-Application
Boy	I-Application
Django	I-Application
in	O
the	O
GBA	B-Device
Slot	O
,	O
the	O
standby	O
character	O
will	O
fill	O
his	O
LIFE	O
,	O
</s>
<s>
Solar	O
Sensor	O
Version	O
3	O
:	O
By	O
inserting	O
Shin	O
Bokura	O
no	O
Taiyō	O
:	O
Gyakushū	O
no	O
Sabata	O
in	O
the	O
GBA	B-Device
Slot	O
,	O
the	O
standby	O
character	O
will	O
fill	O
his	O
TRC	O
(	O
Trance	O
)	O
meter	O
.	O
</s>
<s>
Blowing	O
into	O
the	O
Nintendo	B-Device
DS	I-Device
's	O
microphone	O
will	O
cause	O
the	O
character	O
to	O
whistle	O
,	O
drawing	O
attention	O
to	O
enemies	O
.	O
</s>
<s>
This	O
serves	O
to	O
replace	O
the	O
wall	O
tapping	O
of	O
earlier	O
games	O
in	O
the	O
Boktai	B-Application
series	O
.	O
</s>
<s>
Lunar	B-Application
Knights	I-Application
producer	O
Kensuke	O
Yoshitomi	O
confirmed	O
in	O
a	O
1UP	O
interview	O
that	O
although	O
it	O
takes	O
place	O
in	O
the	O
same	O
world	O
as	O
Boktai	B-Application
,	O
but	O
at	O
a	O
different	O
time	O
period	O
with	O
fresh	O
characters	O
,	O
it	O
is	O
still	O
not	O
a	O
direct	O
sequel	O
to	O
Boktai	B-Application
.	O
</s>
<s>
He	O
stated	O
that	O
the	O
many	O
versions	O
of	O
Princess	O
Zelda	O
and	O
Link	O
throughout	O
The	B-Application
Legend	I-Application
of	I-Application
Zelda	I-Application
series	O
are	O
a	O
good	O
representation	O
of	O
this	O
.	O
</s>
<s>
The	O
game	O
begins	O
with	O
two	O
men	O
talking	O
about	O
the	O
nearby	O
vampire	B-Application
's	O
ability	O
to	O
control	O
flame	O
.	O
</s>
<s>
Lucian	O
,	O
the	O
Lunar	O
Knight	O
overhears	O
them	O
,	O
and	O
sets	O
out	O
to	O
obtain	O
the	O
whereabouts	O
of	O
the	O
Duke	O
,	O
the	O
leader	O
of	O
the	O
Dark	O
Tribe	O
vampires	B-Application
.	O
</s>
<s>
Lucian	O
realizes	O
the	O
strength	O
of	O
the	O
vampire	B-Application
,	O
and	O
must	O
upgrade	O
his	O
weapon	O
by	O
taking	O
it	O
to	O
Professor	O
Sheridan	O
.	O
</s>
<s>
When	O
Lucian	O
arrives	O
at	O
the	O
end	O
of	O
the	O
level	O
,	O
there	O
is	O
a	O
cutscene	O
where	O
Lucian	O
blocks	O
a	O
bolt	O
from	O
the	O
vampire	B-Application
meant	O
for	O
Bea	O
.	O
</s>
<s>
After	O
defeating	O
and	O
purifying	O
the	O
vampire	B-Application
,	O
he	O
obtains	O
the	O
power	O
of	O
the	O
flame	O
terrenial	O
Ursula	O
.	O
</s>
<s>
Later	O
on	O
,	O
two	O
vampires	B-Application
known	O
as	O
the	O
Poes	O
attack	O
Aaron	O
,	O
however	O
Ernest	O
;	O
the	O
Leader	O
of	O
the	O
Guild	O
,	O
and	O
Kay	O
;	O
his	O
apprentice	O
distract	O
them	O
and	O
Aaron	O
must	O
gather	O
the	O
last	O
of	O
the	O
members	O
.	O
</s>
<s>
Bea	O
reappears	O
and	O
tells	O
them	O
the	O
vampires	B-Application
are	O
hiding	O
in	O
the	O
sewer	O
where	O
the	O
player	O
cannot	O
recharge	O
energy	O
.	O
</s>
<s>
When	O
they	O
arrive	O
at	O
the	O
end	O
,	O
The	O
Poes	O
reveal	O
that	O
they	O
have	O
packed	O
the	O
gunslingers	O
on	O
a	O
train	O
for	O
the	O
vampire	B-Application
tower	O
.	O
</s>
<s>
The	O
player	O
defeats	O
and	O
purifies	O
the	O
vampire	B-Application
known	O
as	O
Baron	O
Stoker	O
.	O
</s>
<s>
He	O
tells	O
them	O
that	O
Humans	O
and	O
Vampires	B-Application
may	O
have	O
to	O
become	O
allies	O
.	O
</s>
<s>
Dumas	O
leaves	O
,	O
and	O
Lucian	O
declares	O
he	O
will	O
never	O
work	O
with	O
Vampires	B-Application
,	O
even	O
against	O
the	O
immortals	O
.	O
</s>
<s>
Boktai	B-Application
DS	I-Application
,	O
the	O
Japanese	O
version	O
of	O
Lunar	B-Application
Knights	I-Application
,	O
continued	O
the	O
crossover-promotion	O
the	O
series	O
had	O
with	O
Capcom	O
's	O
Mega	B-Application
Man	I-Application
franchise	O
since	O
Boktai	B-Application
2	I-Application
.	O
</s>
<s>
Django	O
and	O
Sabata	O
fight	O
Ox	O
Fire	O
,	O
one	O
of	O
the	O
enemy	O
FM-ians	O
from	O
the	O
original	O
Mega	B-Application
Man	I-Application
Star	I-Application
Force	I-Application
,	O
as	O
a	O
hidden	O
boss	O
.	O
</s>
<s>
Players	O
can	O
also	O
obtain	O
exclusive	O
items	O
by	O
transferring	O
game	O
data	O
from	O
Mega	B-Application
Man	I-Application
Star	I-Application
Force	I-Application
into	O
Boktai	B-Application
DS	I-Application
.	O
</s>
<s>
The	O
game	O
received	O
"	O
favorable	O
"	O
reviews	O
according	O
to	O
the	O
review	B-Application
aggregation	I-Application
website	O
Metacritic	O
.	O
</s>
