<s>
Brain	O
Age	O
:	O
Train	O
Your	O
Brain	O
in	O
Minutes	O
a	O
Day	O
!,	O
known	O
as	O
Dr.	B-Application
Kawashima	I-Application
's	I-Application
Brain	I-Application
Training	I-Application
:	I-Application
How	I-Application
Old	I-Application
Is	I-Application
Your	I-Application
Brain	I-Application
?	I-Application
</s>
<s>
It	O
was	O
developed	O
and	O
published	O
by	O
Nintendo	O
for	O
the	O
Nintendo	B-Device
DS	I-Device
.	O
</s>
<s>
It	O
was	O
followed	O
by	O
a	O
sequel	O
titled	O
Brain	O
Age	O
2	O
:	O
More	O
Training	O
in	O
Minutes	O
a	O
Day	O
!,	O
and	O
was	O
later	O
followed	O
by	O
two	O
redesigns	O
and	O
Brain	B-Application
Age	I-Application
Express	I-Application
for	O
the	O
Nintendo	B-Device
DSi	I-Device
's	O
DSiWare	O
service	O
which	O
uses	O
popular	O
puzzles	O
from	O
these	O
titles	O
as	O
well	O
as	O
several	O
new	O
puzzles	O
,	O
and	O
Brain	B-Application
Age	I-Application
:	I-Application
Concentration	I-Application
Training	I-Application
for	O
Nintendo	B-Operating_System
3DS	I-Operating_System
.	O
</s>
<s>
The	O
latest	O
installment	O
in	O
the	O
series	O
,	O
Dr	B-Application
Kawashima	I-Application
's	I-Application
Brain	I-Application
Training	I-Application
for	I-Application
Nintendo	I-Application
Switch	I-Application
,	O
for	O
the	O
Nintendo	B-Application
Switch	I-Application
,	O
was	O
first	O
released	O
in	O
Japan	O
on	O
December	O
27	O
,	O
2019	O
.	O
</s>
<s>
The	O
game	O
was	O
later	O
released	O
on	O
the	O
Nintendo	B-Application
eShop	I-Application
for	O
the	O
Wii	B-Device
U	I-Device
in	O
Japan	O
in	O
mid-2014	O
.	O
</s>
<s>
Brain	O
Age	O
is	O
designed	O
to	O
be	O
played	O
a	O
little	O
each	O
day	O
,	O
similar	O
to	O
the	O
Nintendogs	B-Application
titles	O
and	O
Animal	B-Device
Crossing	I-Device
:	I-Device
Wild	I-Device
World	I-Device
.	O
</s>
<s>
The	O
Nintendo	B-Device
DS	I-Device
is	I-Device
held	O
on	O
its	O
side	O
,	O
with	O
the	O
touch	O
screen	O
on	O
the	O
right	O
for	O
right-handed	O
people	O
and	O
the	O
left	O
for	O
left-handed	O
people	O
.	O
</s>
<s>
Brain	O
Age	O
allows	O
up	O
to	O
four	O
players	O
to	O
save	O
profiles	O
on	O
one	O
DS	B-Device
game	O
card	O
,	O
and	O
these	O
players	O
can	O
interact	O
with	O
each	O
other	O
in	O
several	O
different	O
ways	O
.	O
</s>
<s>
Syllable	B-General_Concept
Count	O
shows	O
several	O
phrases	O
,	O
one	O
after	O
the	O
other	O
,	O
on	O
the	O
top	O
screen	O
,	O
and	O
the	O
player	O
must	O
write	O
the	O
number	O
of	O
syllables	B-General_Concept
in	O
each	O
phrase	O
on	O
the	O
touch	O
screen	O
.	O
</s>
<s>
A	O
player	O
with	O
a	O
copy	O
of	O
Brain	O
Age	O
can	O
send	O
certain	O
game	O
data	O
to	O
other	O
Nintendo	B-Device
DS	I-Device
consoles	O
using	O
the	O
DS	B-Device
Download	O
Play	O
feature	O
.	O
</s>
<s>
They	O
may	O
either	O
download	O
Quick	O
Play	O
mode	O
to	O
this	O
player	O
's	O
Nintendo	B-Device
DS	I-Device
,	O
or	O
Calculations	O
×	O
30	O
,	O
a	O
variation	O
of	O
the	O
other	O
Calculation	O
puzzles	O
which	O
can	O
be	O
played	O
by	O
up	O
to	O
sixteen	O
people	O
.	O
</s>
<s>
This	O
mode	O
is	O
not	O
supported	O
in	O
the	O
Wii	B-Device
U	I-Device
Virtual	O
Console	O
version	O
.	O
</s>
<s>
Professor	O
of	O
cognitive	O
psychology	O
Alain	O
Lieury	O
at	O
the	O
University	O
of	O
Rennes	O
,	O
France	O
said	O
:	O
"	O
The	O
Nintendo	B-Device
DS	I-Device
is	I-Device
a	O
technological	O
jewel	O
.	O
</s>
<s>
The	O
first	O
two	O
completed	O
a	O
seven-week	O
memory	O
course	O
on	O
a	O
Nintendo	B-Device
DS	I-Device
,	O
the	O
third	O
did	O
puzzles	O
with	O
pencils	O
and	O
paper	O
,	O
and	O
the	O
fourth	O
went	O
to	O
school	O
as	O
normal	O
.	O
</s>
<s>
It	O
has	O
also	O
been	O
stated	O
that	O
the	O
same	O
effects	O
of	O
"	O
keeping	O
the	O
brain	O
sharp	O
"	O
can	O
be	O
achieved	O
by	O
either	O
playing	O
Sudoku	O
,	O
Tetris	B-Device
or	O
talking	O
with	O
friends	O
.	O
</s>
<s>
As	O
both	O
Iwata	O
and	O
Professor	O
Kawashima	O
were	O
too	O
busy	O
to	O
meet	O
under	O
normal	O
circumstances	O
,	O
they	O
both	O
agreed	O
to	O
meet	O
for	O
an	O
hour	O
during	O
the	O
Nintendo	B-Device
DS	I-Device
launch	O
.	O
</s>
<s>
The	O
main	O
menu	O
song	O
from	O
this	O
game	O
was	O
later	O
used	O
in	O
Super	B-Application
Smash	I-Application
Bros	I-Application
.	I-Application
Brawl	I-Application
.	O
</s>
<s>
In	O
Europe	O
,	O
Brain	O
Age	O
received	O
critical	O
acclaim	O
,	O
becoming	O
number	O
1	O
in	O
the	O
Nintendo	B-Device
DS	I-Device
sales	O
chart	O
,	O
and	O
number	O
4	O
in	O
the	O
all-platforms	O
chart	O
on	O
debut	O
,	O
and	O
selling	O
more	O
than	O
500,000	O
units	O
in	O
just	O
over	O
two	O
months	O
.	O
</s>
<s>
It	O
was	O
the	O
10th	O
best-selling	O
Nintendo	B-Device
DS	I-Device
game	O
of	O
December	O
2008	O
in	O
the	O
United	O
States	O
.	O
</s>
<s>
5	O
,	O
due	O
to	O
how	O
it	O
"	O
bucked	O
the	O
dominant	O
trends	O
"	O
and	O
"	O
ushered	O
in	O
the	O
era	O
of	O
games	O
that	O
are	O
(	O
supposedly	O
)	O
good	O
for	O
you	O
,	O
like	O
Wii	B-Application
Fit	I-Application
"	O
.	O
</s>
<s>
In	O
the	O
North	O
American	O
market	O
,	O
the	O
game	O
is	O
known	O
as	O
Brain	B-Application
Age	I-Application
:	I-Application
Train	I-Application
Your	I-Application
Brain	I-Application
in	I-Application
Minutes	I-Application
a	I-Application
Day	I-Application
and	O
was	O
released	O
on	O
April	O
17	O
,	O
2006	O
,	O
and	O
included	O
108	O
Sudoku	O
puzzles	O
of	O
different	O
levels	O
of	O
difficulty	O
.	O
</s>
<s>
It	O
has	O
also	O
been	O
given	O
away	O
to	O
certain	O
retailers	O
with	O
the	O
purchase	O
of	O
a	O
Nintendo	B-Device
DS	I-Device
Lite	I-Device
.	O
</s>
<s>
The	O
game	O
was	O
released	O
as	O
Dr	O
Kawashima	O
's	O
Brain	B-Application
Training	I-Application
:	I-Application
How	I-Application
Old	I-Application
Is	I-Application
Your	I-Application
Brain	I-Application
?	I-Application
</s>
<s>
The	O
game	O
was	O
one	O
of	O
the	O
launch	O
titles	O
for	O
the	O
DS	B-Device
Lite	I-Device
in	O
South	O
Korea	O
,	O
along	O
with	O
English	O
Training	O
:	O
Have	O
Fun	O
Improving	O
Your	O
Skills	O
!	O
.	O
</s>
