<s>
is	O
a	O
role-playing	O
video	O
game	O
developed	O
by	O
Pyramid	O
and	O
originally	O
released	O
for	O
the	O
DoCoMO	O
mobile	B-Application
service	O
in	O
December	O
2007	O
.	O
</s>
<s>
A	O
full	O
remake	O
for	O
the	O
PlayStation	B-Device
Vita	I-Device
was	O
released	O
in	O
February	O
2016	O
.	O
</s>
<s>
Hero	B-Application
Must	I-Application
Die	I-Application
takes	O
place	O
over	O
five	O
days	O
,	O
and	O
features	O
the	O
last	O
exploits	O
of	O
an	O
unnamed	O
hero	O
after	O
he	O
defeats	O
the	O
Dark	O
Lord	O
Guille	O
at	O
the	O
cost	O
of	O
his	O
life	O
and	O
is	O
given	O
a	O
last	O
chance	O
to	O
explore	O
the	O
world	O
he	O
saved	O
and	O
potentially	O
solve	O
some	O
lingering	O
problems	O
.	O
</s>
<s>
The	O
concept	O
of	O
Hero	B-Application
Must	I-Application
Die	I-Application
was	O
developed	O
by	O
its	O
scenario	O
writer	O
and	O
designer	O
Shoji	O
Masuda	O
based	O
on	O
his	O
experiences	O
of	O
watching	O
his	O
father	O
deteriorate	O
from	O
cirrhosis	O
.	O
</s>
<s>
The	O
music	O
was	O
composed	O
by	O
Kenji	O
Ito	O
,	O
and	O
was	O
his	O
first	O
time	O
working	O
on	O
a	O
mobile	B-Application
game	I-Application
.	O
</s>
<s>
The	O
mobile	B-Application
version	O
of	O
the	O
game	O
stopped	O
network	O
distribution	O
in	O
2012	O
.	O
</s>
<s>
Hero	B-Application
Must	I-Application
Die	I-Application
is	O
a	O
role-playing	O
video	O
game	O
which	O
puts	O
players	O
into	O
the	O
role	O
of	O
an	O
unnamed	O
hero	O
.	O
</s>
<s>
The	O
story	O
of	O
Hero	B-Application
Must	I-Application
Die	I-Application
takes	O
place	O
after	O
the	O
unnamed	O
hero	O
defeats	O
the	O
dark	O
beast	O
Satan	O
.	O
</s>
<s>
Hero	B-Application
Must	I-Application
Die	I-Application
was	O
developed	O
by	O
game	O
developer	O
Pyramid	O
.	O
</s>
<s>
The	O
staff	O
included	O
designer	O
and	O
story	O
writer	O
Shoji	O
Masuda	O
,	O
producers	O
Kyoko	O
Kawakami	O
and	O
Jun	O
Meishi	O
,	O
the	O
latter	O
of	O
whom	O
worked	O
on	O
Patapon	O
and	O
a	O
video	O
game	O
based	O
on	O
Record	B-Application
of	I-Application
Lodoss	I-Application
War	I-Application
;	O
and	O
production	O
manager	O
Junichi	O
Kashiwagi	O
,	O
who	O
worked	O
on	O
Chaos	O
Seed	O
.	O
</s>
<s>
When	O
creating	O
the	O
concept	O
of	O
Hero	B-Application
Must	I-Application
Die	I-Application
,	O
Masuda	O
drew	O
from	O
own	O
experiences	O
of	O
living	O
through	O
his	O
father	O
's	O
deterioration	O
after	O
receiving	O
surgery	O
for	O
cirrhosis	O
in	O
1995	O
:	O
despite	O
the	O
surgery	O
being	O
successful	O
,	O
Masuda	O
's	O
father	O
was	O
given	O
ten	O
years	O
to	O
live	O
.	O
</s>
<s>
These	O
experiences	O
formed	O
the	O
core	O
concepts	O
for	O
Hero	B-Application
Must	I-Application
Die	I-Application
:	O
its	O
main	O
theme	O
was	O
choosing	O
what	O
to	O
do	O
within	O
a	O
limited	O
amount	O
of	O
time	O
.	O
</s>
<s>
The	O
specific	O
concept	O
for	O
Hero	B-Application
Must	I-Application
Die	I-Application
was	O
fully	O
formed	O
by	O
1999	O
,	O
while	O
he	O
was	O
working	O
on	O
the	O
first	O
Oreshika	O
game	O
.	O
</s>
<s>
Mobile	B-Application
phones	O
were	O
chosen	O
as	O
the	O
platform	O
due	O
to	O
budgetary	O
issues	O
and	O
the	O
projected	O
production	O
period	O
.	O
</s>
<s>
The	O
characters	O
were	O
designed	O
by	O
Shunya	O
Yamashita	O
,	O
whose	O
previous	O
work	O
included	O
character	O
designs	O
for	O
Final	O
Fantasy	O
X	O
and	O
Valkyrie	B-Device
Profile	I-Device
2	I-Device
:	I-Device
Silmeria	I-Device
.	O
</s>
<s>
The	O
music	O
was	O
composed	O
by	O
Kenji	O
Ito	O
,	O
whose	O
previous	O
work	O
included	O
scoring	O
for	O
games	O
in	O
the	O
Mana	B-Application
and	O
SaGa	O
series	O
.	O
</s>
<s>
While	O
he	O
had	O
arranged	O
some	O
of	O
his	O
previous	O
pieces	O
for	O
mobile	B-Application
devices	O
as	O
ringtones	O
,	O
the	O
majority	O
of	O
his	O
recent	O
work	O
to	O
that	O
point	O
was	O
for	O
the	O
PlayStation	B-Device
2	I-Device
and	O
Nintendo	B-Device
DS	I-Device
.	O
</s>
<s>
Hero	B-Application
Must	I-Application
Die	I-Application
was	O
the	O
first	O
time	O
he	O
had	O
written	O
an	O
original	O
score	O
for	O
a	O
mobile	B-Application
title	O
.	O
</s>
<s>
A	O
priority	O
was	O
keeping	O
the	O
music	O
of	O
high	O
quality	O
while	O
taking	O
the	O
differing	O
specifications	O
of	O
mobile	B-Application
phones	O
into	O
account	O
.	O
</s>
<s>
Hero	B-Application
Must	I-Application
Die	I-Application
was	O
first	O
released	O
on	O
December	O
25	O
,	O
2007	O
for	O
the	O
NTT	O
DoCoMo	O
service	O
.	O
</s>
<s>
It	O
was	O
later	O
released	O
for	O
SoftBank	O
Mobile	B-Application
on	O
May	O
1	O
,	O
2008	O
and	O
for	O
EZweb	O
on	O
September	O
18	O
,	O
2008	O
.	O
</s>
<s>
A	O
full	O
remake	O
for	O
the	O
PlayStation	B-Device
Vita	I-Device
was	O
announced	O
in	O
July	O
2015	O
.	O
</s>
<s>
A	O
version	O
for	O
the	B-Operating_System
PlayStation	I-Operating_System
4	I-Operating_System
,	O
Nintendo	B-Application
Switch	I-Application
and	O
PC	B-Device
titled	O
Hero	B-Application
Must	I-Application
Die	I-Application
.	O
</s>
<s>
The	O
original	O
version	O
release	O
of	O
Hero	B-Application
Must	I-Application
Die	I-Application
was	O
rereleased	O
by	O
G-Mode	O
Corp	O
for	O
the	O
Nintendo	B-Application
Switch	I-Application
on	O
October	O
1	O
,	O
2020	O
.	O
</s>
<s>
In	O
a	O
review	O
of	O
the	O
original	O
mobile	B-Application
version	O
,	O
Japanese	O
gaming	O
site	O
Game	O
Watch	O
Impress	O
was	O
overall	O
impressed	O
:	O
the	O
reviewer	O
praised	O
its	O
unique	O
premise	O
,	O
its	O
gameplay	O
,	O
and	O
the	O
variety	O
of	O
events	O
present	O
.	O
</s>
<s>
RPGamer	O
,	O
in	O
a	O
piece	O
about	O
the	O
remake	O
's	O
announcement	O
,	O
said	O
that	O
the	O
game	O
had	O
"	O
incredible	O
"	O
replay	O
value	O
and	O
positively	O
said	O
Hero	B-Application
Must	I-Application
Die	I-Application
was	O
an	O
"	O
odd	O
enough	O
duck	O
"	O
.	O
</s>
