<s>
It	O
is	O
the	O
seventh	O
game	O
in	O
the	O
Touhou	B-Application
Project	I-Application
series	O
.	O
</s>
<s>
The	O
game	O
introduces	O
many	O
gameplay	O
changes	O
over	O
its	O
predecessor	O
Embodiment	B-Application
of	I-Application
Scarlet	I-Application
Devil	I-Application
,	O
many	O
of	O
which	O
would	O
become	O
standard	O
in	O
subsequent	O
Touhou	B-Application
games	I-Application
,	O
including	O
the	O
ability	O
to	O
see	O
the	O
player	O
's	O
own	O
hitbox	O
.	O
</s>
<s>
Perfect	B-Application
Cherry	I-Application
Blossom	I-Application
is	O
a	O
vertical	O
scrolling	O
shoot	O
'	O
em	O
up	O
.	O
</s>
<s>
As	O
in	O
Embodiment	B-Application
of	I-Application
Scarlet	I-Application
Devil	I-Application
,	O
the	O
player	O
can	O
enter	O
Focus	O
mode	O
,	O
slowing	O
the	O
player	O
which	O
makes	O
it	O
easier	O
to	O
dodge	O
enemy	O
attacks	O
.	O
</s>
<s>
Perfect	B-Application
Cherry	I-Application
Blossom	I-Application
introduces	O
the	O
"	O
Cherry	O
"	O
scoring	O
system	O
,	O
unique	O
to	O
the	O
game	O
.	O
</s>
<s>
Other	O
important	O
gameplay	O
changes	O
introduced	O
in	O
Perfect	B-Application
Cherry	I-Application
Blossom	I-Application
include	O
the	O
player	O
's	O
shot	O
having	O
different	O
properties	O
if	O
they	O
are	O
focused	O
,	O
a	O
cursor	O
on	O
the	O
bottom	O
margin	O
of	O
the	O
screen	O
during	O
a	O
boss	O
battle	O
which	O
tells	O
the	O
player	O
where	O
the	O
boss	O
is	O
currently	O
located	O
,	O
and	O
a	O
consistent	O
time	O
in	O
which	O
to	O
perform	O
a	O
deathbomb	O
.	O
</s>
<s>
Perfect	B-Application
Cherry	I-Application
Blossom	I-Application
consists	O
of	O
six	O
regular	O
stages	O
with	O
four	O
levels	O
of	O
difficulty	O
,	O
and	O
also	O
offers	O
a	O
practice	O
mode	O
,	O
allowing	O
the	O
player	O
to	O
play	O
through	O
a	O
single	O
stage	O
at	O
any	O
time	O
,	O
provided	O
they	O
have	O
completed	O
it	O
already	O
.	O
</s>
<s>
As	O
a	O
result	O
,	O
in	O
terms	O
of	O
the	O
number	O
of	O
unique	O
stages	O
,	O
Perfect	B-Application
Cherry	I-Application
Blossom	I-Application
is	O
the	O
longest	O
game	O
in	O
the	O
series	O
,	O
with	O
eight	O
.	O
</s>
<s>
As	O
the	O
Hakurei	B-Application
Shrine	I-Application
is	O
old	O
,	O
the	O
winter	O
caused	O
Reimu	O
to	O
be	O
perpetually	O
stuck	O
in	O
the	O
cold	O
,	O
which	O
motivates	O
Reimu	O
to	O
resolve	O
the	O
incident	O
.	O
</s>
<s>
Yuyuko	O
and	O
the	O
heroine	O
fight	O
to	O
get	O
the	O
last	O
"	O
spring	O
"	O
contained	O
in	O
the	O
heroine	O
needed	O
for	O
the	O
Perfect	B-Application
Cherry	I-Application
Blossom	I-Application
,	O
and	O
to	O
reclaim	O
Gensokyo	O
's	O
spring	O
.	O
</s>
<s>
As	O
a	O
result	O
of	O
the	O
Spring	O
Snow	O
Incident	O
,	O
since	O
the	O
arrival	O
of	O
spring	O
was	O
late	O
,	O
the	O
hanami	O
season	O
became	O
short	O
,	O
and	O
was	O
also	O
the	O
trigger	O
for	O
the	O
incident	O
orchestrated	O
by	O
Suika	O
Ibuki	O
in	O
Immaterial	B-Application
and	I-Application
Missing	I-Application
Power	I-Application
,	O
the	O
next	O
Touhou	B-Application
game	O
.	O
</s>
<s>
The	O
first	O
demo	O
of	O
Perfect	B-Application
Cherry	I-Application
Blossom	I-Application
was	O
released	O
at	O
the	O
63rd	O
Comiket	O
on	O
December	O
30	O
,	O
2002	O
.	O
</s>
<s>
ZUN	O
stated	O
that	O
Perfect	B-Application
Cherry	I-Application
Blossom	I-Application
is	O
"	O
not	O
a	O
very	O
smart	O
game	O
"	O
,	O
saying	O
that	O
since	O
many	O
new	O
people	O
are	O
playing	O
his	O
games	O
,	O
it	O
would	O
be	O
nice	O
to	O
have	O
more	O
fan	O
service	O
,	O
but	O
it	O
is	O
just	O
more	O
of	O
the	O
same	O
.	O
</s>
<s>
In	O
a	O
review	O
for	O
Sick	O
Critic	O
,	O
Max	O
Broggi-Sumner	O
said	O
that	O
"	O
Perfect	B-Application
Cherry	I-Application
Blossom	I-Application
is	O
a	O
fantastic	O
sequel	O
,	O
taking	O
everything	O
that	O
made	O
EoSD	B-Application
great	O
and	O
improving	O
on	O
it	O
.	O
</s>
<s>
On	O
GameSpot	O
,	O
Perfect	B-Application
Cherry	I-Application
Blossom	I-Application
had	O
an	O
average	O
user	O
rating	O
of	O
9.4/10	O
.	O
</s>
<s>
According	O
to	O
ZUN	O
,	O
Perfect	B-Application
Cherry	I-Application
Blossom	I-Application
was	O
the	O
most	O
popular	O
Touhou	B-Application
game	O
in	O
the	O
series	O
.	O
</s>
<s>
British	O
comedian	O
and	O
journalist	O
Charlie	O
Brooker	O
,	O
in	O
his	O
video	O
game	O
review	O
show	O
Gameswipe	O
,	O
presented	O
Perfect	B-Application
Cherry	I-Application
Blossom	I-Application
as	O
an	O
example	O
of	O
the	O
shoot	O
'	O
em	O
up	O
genre	O
that	O
"	O
masochistic	O
maniacs	O
actively	O
enjoy	O
dipping	O
into	O
"	O
.	O
</s>
