<s>
Brain	B-Application
Age	I-Application
:	I-Application
Concentration	I-Application
Training	I-Application
,	O
known	O
in	O
Europe	O
and	O
Australia	O
as	O
Dr	O
Kawashima	O
's	O
Devilish	B-Application
Brain	I-Application
Training	I-Application
:	O
Can	O
you	O
stay	O
focused	O
?,	O
is	O
an	O
educational	O
puzzle	O
video	O
game	O
developed	O
and	O
published	O
by	O
Nintendo	O
.	O
</s>
<s>
It	O
is	O
the	O
fourth	O
major	O
entry	O
in	O
the	O
Brain	O
Age	O
series	O
and	O
the	O
first	O
made	O
specifically	O
for	O
the	O
Nintendo	B-Operating_System
3DS	I-Operating_System
.	O
</s>
<s>
Brain	B-Application
Age	I-Application
:	I-Application
Concentration	I-Application
Training	I-Application
features	O
a	O
selection	O
of	O
activities	O
and	O
minigames	O
that	O
are	O
designed	O
to	O
stimulate	O
and	O
improve	O
the	O
player	O
's	O
concentration	O
and	O
working	O
memory	O
interspersed	O
with	O
brief	O
lectures	O
by	O
Dr.	O
Kawashima	O
.	O
</s>
<s>
Unlike	O
past	O
installments	O
,	O
the	O
3DS	B-Operating_System
is	O
held	O
in	O
its	O
standard	O
position	O
,	O
rather	O
than	O
sideways	O
(	O
except	O
for	O
Relaxation	O
Mode	O
)	O
.	O
</s>
<s>
In	O
Brain	O
Training	O
,	O
the	O
exercises	O
come	O
in	O
the	O
form	O
of	O
either	O
traditional	O
games	O
,	O
such	O
as	O
Klondike	B-Language
Solitaire	I-Language
,	O
Spider	O
Solitaire	O
,	O
and	O
Mahjong	B-Application
,	O
as	O
well	O
as	O
some	O
exercises	O
returning	O
from	O
the	O
past	O
Brain	O
Age	O
installments	O
.	O
</s>
<s>
They	O
include	O
3	O
games	O
:	O
Blob	O
Blast	O
and	O
Germ	O
Buster	O
(	O
inspired	O
by	O
Wario	B-Application
's	I-Application
Woods	I-Application
and	O
Dr.	B-Application
Mario	I-Application
respectively	O
)	O
,	O
and	O
Music	O
Appreciation	O
,	O
which	O
lets	O
players	O
listen	O
to	O
relaxing	O
music	O
and	O
the	O
rest	O
of	O
the	O
game	O
's	O
soundtrack	O
.	O
</s>
<s>
Some	O
gaming	O
journalists	O
were	O
initially	O
antagonistic	O
and	O
skeptical	O
towards	O
Brain	B-Application
Age	I-Application
:	I-Application
Concentration	I-Application
Training	I-Application
.	O
</s>
<s>
Brain	B-Application
Age	I-Application
:	I-Application
Concentration	I-Application
Training	I-Application
received	O
average	O
critical	O
reviews	O
,	O
gaining	O
aggregate	O
scores	O
of	O
about	O
70/100	O
on	O
GameRankings	O
and	O
Metacritic	O
.	O
</s>
