<s>
It	O
was	O
originally	O
released	O
for	O
the	O
NEC	B-Device
PC-8801	I-Device
,	O
and	O
ported	O
to	O
several	O
other	O
platforms	B-Device
.	O
</s>
<s>
The	O
Famicom	O
version	O
featured	O
completely	O
redesigned	O
gameplay	O
,	O
a	O
new	O
map	O
,	O
and	O
was	O
retitled	O
Super	B-Application
Black	I-Application
Onyx	I-Application
( スーパーブラックオニキス	O
)	O
.	O
</s>
<s>
The	O
Game	B-Device
Boy	I-Device
Color	I-Device
port	O
was	O
developed	O
by	O
Atelier	O
Double	O
and	O
published	O
by	O
Taito	O
.	O
</s>
<s>
The	O
Game	B-Device
Boy	I-Device
Color	I-Device
port	O
added	O
enhanced	O
visuals	O
and	O
included	O
an	O
option	O
to	O
play	O
through	O
the	O
game	O
with	O
the	O
original	O
game	O
's	O
visual	O
style	O
.	O
</s>
<s>
Because	O
of	O
memory	O
limitations	O
,	O
another	O
part	O
of	O
the	O
game	O
was	O
released	O
separately	O
on	O
some	O
platforms	B-Device
as	O
(	O
which	O
added	O
a	O
magic	O
system	O
)	O
.	O
</s>
<s>
The	O
SG-1000	B-Operating_System
version	O
was	O
one	O
of	O
the	O
last	O
releases	O
for	O
that	O
console	O
,	O
succeeded	O
by	O
Portrait	O
of	O
Loretta	O
.	O
</s>
<s>
These	O
must	O
be	O
solved	O
in	O
the	O
proper	O
order	O
(	O
which	O
depends	O
on	O
the	O
platform	B-Device
)	O
in	O
order	O
to	O
create	O
the	O
stairway	O
to	O
the	O
Black	O
Tower	O
,	O
where	O
the	O
Onyx	O
resides	O
.	O
</s>
<s>
It	O
was	O
one	O
of	O
the	O
first	O
successful	O
Japanese-language	O
RPGs	O
,	O
having	O
sold	B-Application
150,000	O
copies	O
,	O
and	O
helped	O
familiarize	O
the	O
Japanese	O
public	O
with	O
RPGs	O
.	O
</s>
<s>
T&E	O
Soft	O
's	O
Tokohiro	O
Naito	O
,	O
the	O
creator	O
of	O
action	B-Application
role-playing	I-Application
game	I-Application
Hydlide	B-Application
(	O
1984	O
)	O
,	O
was	O
influenced	O
by	O
The	B-Application
Black	I-Application
Onyx	I-Application
,	O
combined	O
its	O
RPG	O
elements	O
with	O
the	O
action	O
gameplay	O
of	O
The	B-Application
Tower	I-Application
of	I-Application
Druaga	I-Application
(	O
1984	O
)	O
.	O
</s>
<s>
Hydlide	B-Application
also	O
borrowed	O
the	O
health	O
meter	O
mechanic	O
from	O
The	B-Application
Black	I-Application
Onyx	I-Application
,	O
and	O
took	O
it	O
a	O
step	O
further	O
with	O
a	O
regenerating	O
health	O
meter	O
.	O
</s>
<s>
An	O
English-language	O
fan-translation	O
was	O
made	O
available	O
for	O
the	O
SG-1000	B-Operating_System
version	O
in	O
2010	O
by	O
back-porting	O
from	O
the	O
abandoned	O
source	O
files	O
for	O
an	O
incomplete	O
2007	O
hobby	O
conversion	O
project	O
for	O
the	O
ColecoVision	B-Device
system	O
.	O
</s>
<s>
Another	O
group	O
later	O
used	O
those	O
same	O
source	O
files	O
to	O
complete	O
the	O
project	O
and	O
released	O
an	O
unofficial	O
English-language	O
ColecoVision	B-Device
game	O
in	O
2013	O
.	O
</s>
<s>
The	B-Application
Black	I-Application
Onyx	I-Application
was	O
adapted	O
as	O
a	O
manga	O
titled	O
,	O
published	O
in	O
the	O
Gamest	O
Comics	O
collection	O
from	O
April	O
1999	O
,	O
drawn	O
by	O
Kouta	O
Hirano	O
.	O
</s>
