<s>
Dr.	B-Application
Luigi	I-Application
is	O
a	O
2013	O
puzzle	O
video	O
game	O
developed	O
by	O
Arika	O
and	O
Nintendo	O
SPD	O
,	O
and	O
published	O
by	O
Nintendo	O
for	O
the	O
Wii	B-Device
U	I-Device
console	O
.	O
</s>
<s>
It	O
is	O
the	O
sixth	O
game	O
in	O
the	O
Dr.	B-Application
Mario	I-Application
series	O
and	O
is	O
part	O
of	O
the	O
larger	O
Mario	B-Application
franchise	I-Application
.	O
</s>
<s>
The	O
player	O
must	O
clear	O
a	O
field	O
of	O
invading	O
viruses	B-Application
using	O
pill	O
capsules	O
to	O
eliminate	O
them	O
,	O
in	O
a	O
tile-matching	B-Application
fashion	O
.	O
</s>
<s>
The	O
game	O
offers	O
four	O
modes	O
:	O
"	O
Operation	O
L	O
"	O
,	O
which	O
utilizes	O
L-shaped	O
pills	O
;	O
"	O
Virus	O
Buster	O
"	O
,	O
using	O
the	O
Wii	B-Device
U	I-Device
GamePad	I-Device
and	O
touchscreen	B-Device
;	O
"	O
Retro	O
Remedy	O
"	O
with	O
standard	O
Dr.	B-Application
Mario	I-Application
gameplay	O
;	O
and	O
local	O
and	O
online	O
multiplayer	O
options	O
.	O
</s>
<s>
Dr.	B-Application
Luigi	I-Application
was	O
created	O
for	O
the	O
Year	O
of	O
Luigi	O
,	O
celebrating	O
the	O
30th	O
anniversary	O
of	O
Luigi	O
since	O
his	O
inception	O
in	O
1983	O
.	O
</s>
<s>
The	O
game	O
was	O
followed	O
by	O
Dr.	B-Application
Mario	I-Application
:	I-Application
Miracle	I-Application
Cure	I-Application
in	O
2015	O
,	O
which	O
includes	O
some	O
of	O
Dr.	B-Application
Luigis	I-Application
gameplay	O
elements	O
.	O
</s>
<s>
Dr.	B-Application
Luigi	I-Application
is	O
a	O
tile-matching	B-Application
video	I-Application
game	I-Application
.	O
</s>
<s>
In	O
each	O
round	O
of	O
the	O
game	O
,	O
the	O
player	O
controls	O
Luigi	O
to	O
eliminate	O
the	O
randomly	O
placed	O
viruses	B-Application
.	O
</s>
<s>
When	O
four	O
or	O
more	O
capsule	O
halves	O
or	O
viruses	B-Application
of	O
matching	O
color	O
are	O
aligned	O
in	O
vertical	O
or	O
horizontal	O
configurations	O
,	O
they	O
disappear	O
.	O
</s>
<s>
The	O
main	O
objective	O
is	O
to	O
complete	O
levels	O
,	O
by	O
eliminating	O
all	O
viruses	B-Application
from	O
the	O
playing	O
field	O
.	O
</s>
<s>
A	O
game	B-Application
over	I-Application
occurs	O
if	O
capsules	O
reach	O
the	O
top	O
of	O
the	O
playing	O
field	O
.	O
</s>
<s>
The	O
game	O
includes	O
four	O
game	O
modes	O
:	O
"	O
Operation	O
L	O
"	O
,	O
where	O
the	O
capsules	O
used	O
are	O
conjoined	O
into	O
an	O
L-shape	O
at	O
move	O
at	O
a	O
slower	O
pace	O
;	O
"	O
Virus	O
Buster	O
"	O
,	O
a	O
mode	O
that	O
is	O
also	O
in	O
Dr.	B-Application
Mario	I-Application
Online	I-Application
Rx	I-Application
,	O
which	O
is	O
played	O
by	O
holding	O
the	O
Wii	B-Device
U	I-Device
GamePad	I-Device
vertically	O
and	O
using	O
the	O
touchscreen	B-Device
to	O
drag	O
and	O
drop	O
the	O
capsules	O
;	O
"	O
Retro	O
Remedy	O
"	O
,	O
which	O
uses	O
traditional	O
Dr.	B-Application
Mario	I-Application
series	O
rules	O
and	O
lacks	O
the	O
gimmicks	O
of	O
Operation	O
L	O
;	O
and	O
local	O
and	O
online	O
multiplayer	O
.	O
</s>
<s>
In	O
multiplayer	O
,	O
each	O
player	O
clears	O
their	O
own	O
playing	O
field	O
of	O
viruses	B-Application
before	O
the	O
opponent	O
does	O
.	O
</s>
<s>
Eliminating	O
multiple	O
viruses	B-Application
or	O
initiating	O
chain	O
reactions	O
can	O
cause	O
additional	O
capsules	O
to	O
fall	O
onto	O
the	O
opponent	O
's	O
playing	O
field	O
.	O
</s>
<s>
A	O
player	O
wins	O
a	O
single	O
game	O
upon	O
eliminating	O
all	O
the	O
viruses	B-Application
or	O
if	O
the	O
opponent	O
's	O
playing	O
field	O
fills	O
up	O
.	O
</s>
<s>
Dr.	B-Application
Luigi	I-Application
was	O
developed	O
by	O
Arika	O
,	O
the	O
developers	O
of	O
Dr.	B-Application
Mario	I-Application
Online	I-Application
Rx	I-Application
and	O
Dr.	B-Device
Mario	I-Device
Express	I-Device
in	O
2008	O
,	O
and	O
Nintendo	O
SPD	O
.	O
</s>
<s>
The	O
main	O
theme	O
is	O
a	O
remix	O
of	O
the	O
original	O
track	O
from	O
Dr.	B-Application
Mario	I-Application
in	O
1990	O
,	O
composed	O
by	O
Hirokazu	O
Tanaka	O
.	O
</s>
<s>
Dr.	B-Application
Luigi	I-Application
was	O
announced	O
via	O
a	O
December	O
Nintendo	O
Direct	O
,	O
and	O
was	O
released	O
on	O
December	O
31	O
,	O
2013	O
,	O
in	O
North	O
America	O
and	O
January	O
15	O
,	O
2014	O
,	O
internationally	O
.	O
</s>
<s>
Various	O
elements	O
from	O
Dr.	B-Application
Luigi	I-Application
,	O
such	O
as	O
Operation	O
L	O
,	O
are	O
in	O
the	O
game	O
's	O
successor	O
,	O
Dr.	B-Application
Mario	I-Application
:	I-Application
Miracle	I-Application
Cure	I-Application
.	O
</s>
<s>
Dr.	B-Application
Luigis	I-Application
critical	O
reception	O
was	O
average	O
,	O
having	O
a	O
score	O
of	O
65/100	O
on	O
review	B-Application
aggregator	I-Application
website	O
Metacritic	O
based	O
on	O
38	O
reviews	O
.	O
</s>
<s>
In	O
the	O
first	O
week	O
of	O
release	O
in	O
Europe	O
,	O
Dr.	B-Application
Luigi	I-Application
was	O
the	O
number	O
one	O
bestseller	O
on	O
the	O
Wii	B-Device
U	I-Device
eShop	B-Application
,	O
ahead	O
of	O
F1	B-Application
Race	I-Application
Stars	I-Application
and	O
the	O
re-release	O
of	O
The	B-Application
Legend	I-Application
of	I-Application
the	I-Application
Mystical	I-Application
Ninja	I-Application
.	O
</s>
<s>
The	O
game	O
's	O
new	O
gimmick	O
,	O
Operation	O
L	O
,	O
received	O
mixed	O
opinions	O
,	O
mainly	O
involving	O
its	O
simplistic	O
additions	O
to	O
the	O
Dr.	B-Application
Mario	I-Application
format	O
.	O
</s>
<s>
Contrarily	O
,	O
IGN	O
reviewer	O
Scott	O
Thompson	O
originally	O
thought	O
that	O
L-shaped	O
pills	O
would	O
be	O
a	O
"	O
shallow	O
gimmick	O
"	O
,	O
but	O
found	O
it	O
to	O
be	O
more	O
entertaining	O
than	O
the	O
traditional	O
Dr.	B-Application
Mario	I-Application
gameplay	O
.	O
</s>
<s>
Kemps	O
believed	O
that	O
Virus	O
Buster	O
benefited	O
from	O
using	O
the	O
Wii	B-Device
U	I-Device
GamePad	I-Device
instead	O
of	O
a	O
Wii	B-Device
Remote	I-Device
used	O
in	O
the	O
previous	O
game	O
.	O
</s>
<s>
The	O
original	O
Dr.	B-Application
Mario	I-Application
was	O
released	O
in	O
1990	O
after	O
the	O
success	O
of	O
Tetris	B-Device
,	O
and	O
,	O
according	O
to	O
Schilling	O
,	O
the	O
gameplay	O
has	O
not	O
held	O
up	O
to	O
modern	O
standards	O
due	O
to	O
its	O
lack	O
of	O
change	O
.	O
</s>
<s>
He	O
also	O
found	O
the	O
price	O
point	O
to	O
be	O
high	O
but	O
considered	O
this	O
in	O
part	O
due	O
to	O
the	O
free	O
nature	O
of	O
Dr.	B-Application
Mario	I-Application
Online	I-Application
RX	I-Application
.	O
</s>
<s>
Meyer	O
and	O
Kuchera	O
saw	O
little	O
change	O
in	O
the	O
formula	O
but	O
thought	O
that	O
the	O
contents	O
still	O
worked	O
as	O
a	O
pleasing	O
puzzle	O
game	O
;	O
according	O
to	O
Kuchera	O
,	O
Dr.	B-Application
Luigi	I-Application
was	O
"	O
a	O
satisfying	O
,	O
customizable	O
collection	O
of	O
puzzle	O
games	O
—	O
even	O
if	O
it	O
all	O
feels	O
a	O
little	O
too	O
safe.	O
"	O
</s>
