<s>
is	O
a	O
1995	O
vertically	O
scrolling	O
dōjin	O
shoot	O
'	O
em	O
up	O
video	O
game	O
developed	O
and	O
originally	O
published	O
by	O
Koichi	O
"	O
Famibe	O
No	O
Yosshin	O
"	O
Yoshida	O
at	O
Comiket	O
for	O
the	O
X68000	B-Device
.	O
</s>
<s>
Cho	B-Application
Ren	I-Application
Sha	I-Application
68K	I-Application
was	O
first	O
made	O
for	O
the	O
X68000	B-Device
due	O
to	O
its	O
popularity	O
in	O
the	O
dōjin	O
and	O
freeware	B-License
development	O
scenes	O
,	O
being	O
influenced	O
by	O
several	O
shoot	O
'	O
em	O
up	O
games	O
in	O
arcades	O
that	O
also	O
played	O
part	O
with	O
its	O
design	O
process	O
.	O
</s>
<s>
The	O
game	O
was	O
later	O
ported	O
to	O
Microsoft	B-Application
Windows	I-Application
in	O
2001	O
,	O
featuring	O
various	O
changes	O
compared	O
to	O
its	O
original	O
release	O
.	O
</s>
<s>
The	O
title	O
was	O
met	O
with	O
mostly	O
positive	O
reception	O
from	O
reviewers	O
for	O
its	O
presentation	O
,	O
graphics	O
,	O
music	O
and	O
gameplay	O
;	O
criticism	O
was	O
geared	O
towards	O
various	O
design	O
choices	O
but	O
has	O
since	O
gained	O
a	O
cult	O
following	O
,	O
serving	O
as	O
an	O
influence	O
for	O
ZeroRanger	B-Application
(	O
2018	O
)	O
.	O
</s>
<s>
Cho	B-Application
Ren	I-Application
Sha	I-Application
68K	I-Application
is	O
a	O
vertically	O
scrolling	O
shoot	O
'	O
em	O
up	O
game	O
in	O
which	O
players	O
take	O
control	O
of	O
the	O
Zanki	O
space	O
fighter	O
craft	O
to	O
fight	O
against	O
enemies	O
and	O
bosses	O
on	O
a	O
ring	O
station	O
.	O
</s>
<s>
Cho	B-Application
Ren	I-Application
Sha	I-Application
68K	I-Application
was	O
first	O
developed	O
for	O
the	O
X68000	B-Device
by	O
Koichi	O
"	O
Famibe	O
No	O
Yosshin	O
"	O
Yoshida	O
,	O
who	O
previously	O
worked	O
with	O
Family	B-Language
BASIC	I-Language
to	O
develop	O
two	O
shooter	O
games	O
titled	O
Zacner	O
(	O
1989	O
)	O
and	O
Zacner	O
II	O
(	O
1993	O
)	O
,	O
late	O
during	O
the	O
commercial	O
life	O
span	O
of	O
the	O
computer	O
as	O
guide	O
books	O
about	O
its	O
hardware	O
galvanized	O
the	O
platform	O
in	O
both	O
dōjin	O
soft	O
and	O
freeware	B-License
scenes	O
.	O
</s>
<s>
Yoshida	O
stated	O
on	O
his	O
personal	O
website	O
detailing	O
development	O
of	O
the	O
project	O
that	O
it	O
was	O
influenced	O
by	O
several	O
shoot	O
'	O
em	O
up	O
games	O
in	O
arcades	O
such	O
as	O
Batsugun	B-Application
,	O
Tatsujin	B-Application
Ō	I-Application
and	O
Battle	B-Application
Garegga	I-Application
,	O
among	O
others	O
that	O
also	O
played	O
part	O
with	O
its	O
design	O
process	O
.	O
</s>
<s>
The	O
fixed	O
width	O
of	O
the	O
player	O
's	O
shot	O
was	O
borrowed	O
from	O
Star	B-Application
Force	I-Application
,	O
however	O
issues	O
arrived	O
when	O
making	O
said	O
shot	O
look	O
more	O
modern	O
before	O
reaching	O
a	O
compromise	O
.	O
</s>
<s>
Yoshida	O
wanted	O
to	O
recreate	O
a	O
technique	O
in	O
older	O
shoot	O
'	O
em	O
up	O
games	O
dubbed	O
"	O
point-blank	O
"	O
,	O
where	O
more	O
damage	O
is	O
dealt	O
to	O
enemies	O
upclose	O
as	O
result	O
of	O
various	O
mechanics	O
and	O
wanted	O
a	O
game	O
balance	O
reminiscent	O
of	O
Star	B-Application
Force	I-Application
but	O
said	O
mechanics	O
went	O
against	O
what	O
he	O
planned	O
for	O
Cho	B-Application
Ren	I-Application
Sha	I-Application
68K	I-Application
,	O
deciding	O
to	O
reduce	O
the	O
size	O
of	O
enemy	O
collision	O
hitboxes	O
constantly	O
that	O
ultimately	O
let	O
to	O
redrawing	O
certain	O
enemies	O
to	O
adjust	O
with	O
their	O
hitboxes	O
.	O
</s>
<s>
Yoshida	O
also	O
decided	O
to	O
adjust	O
firing	O
accuracy	O
depending	O
on	O
circumstances	O
and	O
cited	O
various	O
titles	O
like	O
Flying	B-Application
Shark	I-Application
,	O
Parodious	O
Da	O
!,	O
and	O
V・V	B-Application
as	O
examples	O
where	O
enemies	O
had	O
low-accuracy	O
aiming	O
.	O
</s>
<s>
Yoshida	O
wanted	O
to	O
use	O
manual	O
fire	O
mechanics	O
instead	O
of	O
autofire	B-Device
as	O
well	O
,	O
stating	O
that	O
manual	O
fire	O
mechanics	O
were	O
"	O
on	O
the	O
verge	O
of	O
dying	O
out	O
"	O
but	O
decided	O
to	O
implement	O
a	O
semi-autofire	O
feature	O
.	O
</s>
<s>
Due	O
to	O
hardware	O
limitations	O
with	O
the	O
X68000	B-Device
,	O
multiple	O
sound	O
effects	O
could	O
not	O
be	O
played	O
simultaneously	O
and	O
the	O
main	O
goals	O
Yoshida	O
wanted	O
in	O
his	O
design	O
concept	O
was	O
to	O
evoke	O
a	O
fun	O
sense	O
of	O
destruction	O
and	O
make	O
shooting	O
exciting	O
,	O
prioritizing	O
sound	O
design	O
in	O
a	O
specific	O
order	O
.	O
</s>
<s>
Cho	B-Application
Ren	I-Application
Sha	I-Application
68K	I-Application
was	O
mainly	O
written	O
in	O
C	B-Language
language	I-Language
but	O
Yoshida	O
claimed	O
Assembler	B-Language
language	I-Language
was	O
also	O
used	O
in	O
certain	O
points	O
to	O
increase	O
execution	O
speed	O
.	O
</s>
<s>
Yoshida	O
also	O
wrote	O
a	O
sprite	O
driver	O
called	O
"	O
XSP	O
"	O
,	O
which	O
used	O
a	O
programming	O
technique	O
that	O
increased	O
the	O
number	O
of	O
sprites	O
onscreen	O
,	O
as	O
well	O
as	O
developing	O
a	O
programming	O
trick	O
to	O
overcome	O
the	O
X68000	B-Device
's	O
PCG	O
definition	O
limit	O
.	O
</s>
<s>
Kashiwagi	O
had	O
previously	O
written	O
original	O
songs	O
for	O
the	O
X68000	B-Device
during	O
his	O
high	O
school	O
years	O
before	O
meeting	O
Yoshida	O
via	O
a	O
networking	O
system	O
in	O
Japan	O
and	O
took	O
the	O
task	O
of	O
creating	O
music	O
for	O
the	O
project	O
.	O
</s>
<s>
When	O
composing	O
for	O
the	O
title	O
,	O
Kashiwagi	O
was	O
influenced	O
by	O
both	O
Battle	B-Application
Garegga	I-Application
and	O
Viewpoint	B-Application
,	O
stating	O
that	O
he	O
made	O
his	O
"	O
own	O
Eurobeat	O
"	O
for	O
the	O
first	O
stage	O
.	O
</s>
<s>
Cho	B-Application
Ren	I-Application
Sha	I-Application
68K	I-Application
was	O
first	O
released	O
by	O
Famibe	O
No	O
Yosshin	O
as	O
dōjin	O
soft	O
for	O
the	O
X68000	B-Device
at	O
the	O
1995	O
Comiket	O
.	O
</s>
<s>
On	O
12	O
September	O
2001	O
,	O
Cho	B-Application
Ren	I-Application
Sha	I-Application
68K	I-Application
was	O
later	O
ported	O
to	O
Microsoft	B-Application
Windows	I-Application
as	O
freeware	B-License
.	O
</s>
<s>
The	O
original	O
X68000	B-Device
version	O
ran	O
at	O
55	O
frames	O
per	O
second	O
,	O
while	O
the	O
Windows	O
port	O
runs	O
at	O
60	O
frames	O
per	O
second	O
instead	O
,	O
increasing	O
the	O
difficulty	O
by	O
9%	O
.	O
</s>
<s>
As	O
the	O
original	O
Windows	O
release	O
was	O
intended	O
for	O
Windows	B-Device
98	I-Device
,	O
playing	O
it	O
on	O
modern	O
hardware	O
exhibits	O
sound	O
issues	O
,	O
which	O
meant	O
that	O
running	O
the	O
game	O
on	O
newer	O
hardware	O
required	O
changing	O
compatibility	O
settings	O
.	O
</s>
<s>
An	O
updated	O
version	O
of	O
the	O
Windows	O
port	O
was	O
released	O
in	O
August	O
2005	O
,	O
adding	O
a	O
hard	O
difficulty	O
and	O
fixing	O
various	O
software	B-Error_Name
bugs	I-Error_Name
from	O
the	O
original	O
release	O
.	O
</s>
<s>
A	O
new	O
updated	O
version	O
of	O
the	O
Windows	O
port	O
was	O
released	O
in	O
May	O
2017	O
,	O
adding	O
support	O
for	O
Windows	B-Operating_System
10	I-Operating_System
while	O
fixing	O
minimal	O
bugs	B-Error_Name
and	O
technical	O
issues	O
.	O
</s>
<s>
In	O
2022	O
,	O
Zuiki	O
announced	O
that	O
Cho	B-Application
Ren	I-Application
Sha	I-Application
68K	I-Application
would	O
be	O
one	O
of	O
the	O
pack-in	O
games	O
for	O
the	O
X68000	B-Device
Z	O
,	O
a	O
miniaturized	O
version	O
of	O
the	O
X68000	B-Device
.	O
</s>
<s>
Cho	B-Application
Ren	I-Application
Sha	I-Application
68K	I-Application
has	O
been	O
received	O
with	O
mostly	O
positive	O
reception	O
from	O
reviewers	O
since	O
its	O
release	O
on	O
the	O
X68000	B-Device
and	O
later	O
on	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
John	O
Szczepaniak	O
of	O
Retro	O
Gamer	O
regarded	O
the	O
X68000	B-Device
original	O
as	O
one	O
of	O
the	O
system	O
's	O
"	O
perfect	O
three	O
"	O
games	O
.	O
</s>
<s>
Nevertheless	O
,	O
Bastien	O
regarded	O
Cho	B-Application
Ren	I-Application
Sha	I-Application
68K	I-Application
as	O
a	O
cult	O
title	O
.	O
</s>
<s>
In	O
contrast	O
,	O
Hrej.cz	O
gave	O
the	O
title	O
a	O
more	O
mixed	O
outlook	O
,	O
stating	O
that	O
"	O
Cho	B-Application
Ren	I-Application
Sha	I-Application
68K	I-Application
brings	O
almost	O
nothing	O
we	O
would	O
n't	O
see	O
anywhere	O
else	O
.	O
</s>
<s>
VentureBeats	O
Stan	O
Evans	O
gave	O
the	O
X68000	B-Device
original	O
a	O
positive	O
retrospective	O
outlook	O
,	O
stating	O
that	O
the	O
game	O
is	O
fun	O
.	O
</s>
<s>
In	O
a	O
brief	O
outlook	O
,	O
James	O
Cunningham	O
of	O
Hardcore	O
Gamer	O
stated	O
that	O
"	O
Cho	B-Application
Ren	I-Application
Sha	I-Application
68K	I-Application
may	O
not	O
be	O
the	O
fanciest	O
shooter	O
out	O
there	O
but	O
it	O
nails	O
that	O
classic	O
feel	O
and	O
is	O
one	O
great	O
encounter	O
after	O
another	O
,	O
so	O
it	O
's	O
well	O
worth	O
taking	O
a	O
trip	O
back	O
to	O
2001	O
and	O
checking	O
out	O
one	O
of	O
the	O
greats	O
"	O
.	O
</s>
<s>
In	O
July	O
2015	O
,	O
a	O
homebrew	B-Application
conversion	O
of	O
the	O
game	O
for	O
the	O
Atari	B-Device
Falcon	I-Device
was	O
released	O
by	O
Sascha	O
Springer	O
,	O
featuring	O
various	O
changes	O
compared	O
to	O
the	O
original	O
X68000	B-Device
release	O
.	O
</s>
<s>
In	O
2016	O
,	O
a	O
reworked	O
port	O
of	O
the	O
title	O
for	O
the	O
Super	B-Device
Cassette	I-Device
Vision	I-Device
was	O
announced	O
by	O
M2	O
programmer	O
Takashi	O
"	O
Faw.Labo	O
"	O
Yamashita	O
.	O
</s>
<s>
System	O
Erasure	O
have	O
cited	O
the	O
game	O
as	O
an	O
influence	O
when	O
developing	O
ZeroRanger	B-Application
.	O
</s>
<s>
Rival	O
Megagun	O
creator	O
Justin	O
Rempel	O
claimed	O
in	O
a	O
2018	O
interview	O
with	O
Japanese	O
website	O
4Gamer.net	O
that	O
Cho	B-Application
Ren	I-Application
Sha	I-Application
68K	I-Application
is	O
the	O
shooting	O
game	O
he	O
admires	O
the	O
most	O
.	O
</s>
