<s>
is	O
an	O
action-adventure	O
game	O
developed	O
and	O
released	O
by	O
Sega	O
for	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
.	O
</s>
<s>
A	O
promotional	O
video	O
was	O
presented	O
at	O
the	O
2009	O
Tokyo	O
Game	O
Show	O
,	O
The	O
sequel	O
to	O
Yakuza	B-Application
3	I-Application
,	O
it	O
was	O
released	O
on	O
March	O
18	O
,	O
2010	O
in	O
Japan	O
after	O
a	O
playable	O
demo	O
was	O
released	O
on	O
the	O
Japanese	O
PlayStation	O
Store	O
on	O
March	O
5	O
.	O
</s>
<s>
Yakuza	B-Application
4	I-Application
was	O
released	O
in	O
Europe	O
and	O
North	O
America	O
in	O
March	O
2011	O
.	O
</s>
<s>
A	O
sequel	O
,	O
Yakuza	B-Application
5	I-Application
was	O
released	O
in	O
2012	O
.	O
</s>
<s>
A	O
remaster	O
was	O
released	O
on	O
the	B-Operating_System
PlayStation	I-Operating_System
4	I-Operating_System
on	O
January	O
17	O
,	O
2019	O
in	O
Japan	O
,	O
and	O
worldwide	O
on	O
October	O
29	O
,	O
2019	O
as	O
part	O
of	O
The	O
Yakuza	B-Application
Remastered	O
Collection	O
.	O
</s>
<s>
Versions	O
for	O
Windows	O
and	O
Xbox	B-Device
One	I-Device
were	O
released	O
in	O
January	O
2021	O
.	O
</s>
<s>
A	O
similar	O
challenge	O
in	O
the	O
Japanese	O
version	O
of	O
Yakuza	B-Application
3	I-Application
was	O
cut	O
from	O
overseas	O
versions	O
and	O
was	O
reintroduced	O
for	O
its	O
remastered	O
edition	O
.	O
</s>
<s>
Kiryu	O
focuses	O
on	O
the	O
powerful	O
blows	O
of	O
Karate	B-Application
and	O
Boxing	B-Application
,	O
Akiyama	O
prefers	O
swift	O
attacks	O
using	O
Taekwondo	B-Application
,	O
Saejima	O
favors	O
powerful	O
and	O
slow	O
brawling/grappling	O
attacks	O
using	O
wrestling	O
techniques	O
,	O
and	O
Tanimura	O
uses	O
the	O
defensive	O
maneuvers	O
of	O
Aikido	O
and	O
Jiu	O
Jitsu	O
that	O
he	O
learned	O
from	O
his	O
time	O
at	O
the	O
police	O
academy	O
.	O
</s>
<s>
Yakuza	B-Application
4	I-Application
takes	O
place	O
one	O
year	O
after	O
the	O
events	O
of	O
Yakuza	B-Application
3	I-Application
.	O
</s>
<s>
Like	O
the	O
original	B-Application
game	I-Application
,	O
most	O
of	O
the	O
action	O
takes	O
place	O
in	O
Kamurocho	O
(	O
resembling	O
Shinjuku	O
's	O
red-light	O
district	O
,	O
Kabukichō	O
)	O
.	O
</s>
<s>
Three	O
locations	O
have	O
been	O
added	O
since	O
Yakuza	B-Application
3	I-Application
:	O
a	O
rooftop	O
area	O
stretching	O
across	O
a	O
large	O
portion	O
of	O
the	O
town	O
,	O
the	O
back	O
streets	O
of	O
Kamurocho	O
(	O
known	O
as	O
)	O
and	O
a	O
third	O
area	O
known	O
as	O
the	O
underground	O
(	O
or	O
,	O
which	O
includes	O
the	O
city	O
's	O
sewers	O
,	O
parking	O
lot	O
and	O
shopping	O
arcades	O
)	O
.	O
</s>
<s>
Yakuza	B-Application
4	I-Application
has	O
three	O
new	O
protagonists	O
in	O
addition	O
to	O
Kazuma	O
Kiryu	O
,	O
the	O
main	O
character	O
since	O
the	O
original	O
Yakuza	B-Application
game	O
:	O
Masayoshi	O
Tanimura	O
(	O
Hiroki	O
Narimiya/Toshiki	O
Masuda	O
)	O
,	O
Shun	O
Akiyama	O
(	O
Kōichi	O
Yamadera	O
)	O
and	O
Taiga	O
Saejima	O
(	O
Rikiya	O
Koyama	O
)	O
.	O
</s>
<s>
Other	O
new	O
characters	O
include	O
Junji	O
Sugiuchi	O
(	O
Kenichi	O
Endō	O
)	O
,	O
a	O
Tokyo	O
Metropolitan	O
Police	O
Department	O
detective	O
;	O
Hiroaki	O
Arai	O
(	O
Ikki	O
Sawamura	O
)	O
,	O
a	O
Tojo	O
Clan	O
yakuza	B-Application
;	O
Seishirō	O
Munakata	O
(	O
Kinya	O
Kitaoji	O
)	O
,	O
a	O
high-ranking	O
police	O
officer	O
and	O
a	O
woman	O
,	O
Lily	O
(	O
Maju	O
Ozawa	O
)	O
.	O
</s>
<s>
Loan	O
shark	O
Shun	O
Akiyama	O
learns	O
that	O
members	O
of	O
the	O
Ueno	O
Seiwa	O
Clan	O
,	O
a	O
Yakuza	B-Application
faction	O
involved	O
in	O
a	O
power	O
struggle	O
with	O
the	O
Tojo	O
Clan	O
since	O
the	O
early	O
1980s	O
,	O
are	O
causing	O
a	O
disturbance	O
.	O
</s>
<s>
His	O
secretary	O
,	O
Hana	O
,	O
gets	O
him	O
released	O
,	O
but	O
detective	O
Junji	O
Sugiuchi	O
warns	O
Akiyama	O
to	O
avoid	O
the	O
yakuza	B-Application
.	O
</s>
<s>
Akiyama	O
reveals	O
to	O
Kido	O
that	O
he	O
used	O
money	O
from	B-Application
the	I-Application
Millennium	I-Application
Tower	I-Application
explosion	I-Application
to	O
start	O
his	O
firm	O
,	O
Sky	O
Finance	O
.	O
</s>
<s>
He	O
meets	O
former	O
Tojo	O
patriarch	O
Goh	O
Hamazaki	O
,	O
imprisoned	O
for	O
attempting	B-Application
to	I-Application
murder	I-Application
Kiryu	I-Application
.	O
</s>
<s>
He	O
tells	O
Kiryu	O
he	O
wants	O
to	O
reform	O
and	O
reveals	O
a	O
ledger	O
indicating	O
that	O
the	O
police	O
and	O
Kyohei	O
Jingu	O
embezzled	O
the	O
Tojo	O
Clan	O
’s	O
10	B-Application
billion	I-Application
yen	I-Application
five	O
years	O
ago	O
.	O
</s>
<s>
Zeebra	O
first	O
contributed	O
to	O
the	O
series	O
with	O
Ryū	B-Application
ga	I-Application
Gotoku	I-Application
Kenzan	I-Application
!	O
s	O
opening	O
theme	O
,	O
"	O
Bushido	O
"	O
.	O
</s>
<s>
Yakuza	B-Application
4	I-Application
received	O
mostly	O
positive	O
reviews	O
from	O
critics	O
.	O
</s>
<s>
In	O
the	O
week	O
of	O
its	O
debut	O
,	O
Yakuza	B-Application
4	I-Application
sold	O
over	O
384,000	O
units	O
.	O
</s>
<s>
On	O
August	O
31	O
,	O
2011	O
,	O
two	O
new	O
Yakuza	B-Application
games	O
were	O
announced	O
:	O
Yakuza	B-Application
5	I-Application
and	O
a	O
sequel	O
to	O
the	O
PSP	B-Operating_System
game	O
,	O
Kurohyō	O
2	O
.	O
</s>
<s>
Yakuza	B-Application
5	I-Application
was	O
released	O
in	O
Japan	O
on	O
December	O
6	O
,	O
2012	O
,	O
and	O
received	O
a	O
worldwide	O
release	O
on	O
December	O
8	O
,	O
2015	O
,	O
as	O
a	O
PlayStation	B-Device
Network	I-Device
download	O
.	O
</s>
