<s>
(	O
stylized	O
as	O
beatmaniaIIDX	O
)	O
is	O
an	O
arcade	O
music	B-Application
video	I-Application
game	I-Application
developed	O
by	O
Bemani	O
and	O
published	O
by	O
Konami	O
.	O
</s>
<s>
After	O
the	O
surprise	O
success	O
of	O
Beatmania	B-Application
,	O
Benami	O
conceived	O
IIDX	O
to	O
simulate	O
an	O
actual	O
disc	O
jockey	O
(	O
DJ	O
)	O
live	O
performance	O
.	O
</s>
<s>
A	O
sequel	O
,	O
Beatmania	B-Application
III	I-Application
,	O
was	O
released	O
in	O
2000	O
.	O
</s>
<s>
The	O
objective	O
of	O
Beatmania	B-Application
IIDX	I-Application
is	O
to	O
perform	O
songs	O
using	O
a	O
controller	O
with	O
seven	O
key	O
buttons	O
and	O
a	O
scratchable	O
turntable	O
.	O
</s>
<s>
5	O
Keys	O
is	O
a	O
mode	O
where	O
the	O
player	O
uses	O
"	O
3	O
white	O
keys	O
on	O
bottom	O
and	O
2	O
black	O
keys	O
on	O
top	O
"	O
like	O
in	O
Beatmania	B-Application
.	O
</s>
<s>
In	O
1997	O
,	O
Konami	O
distributed	O
its	O
Games	O
&	O
Music	B-Application
Division	O
's	O
(	O
G.M.D.	O
)	O
</s>
<s>
Beatmania	B-Application
in	O
Japan	O
as	O
an	O
arcade	O
DJ	O
simulator	O
,	O
significantly	O
influencing	O
rhythm	O
games	O
.	O
</s>
<s>
The	O
studio	O
made	O
more	O
music-themed	O
video	O
games	O
following	O
its	O
release	O
,	O
including	O
Pop'n	B-Application
Music	I-Application
and	O
Dance	B-Application
Dance	I-Application
Revolution	I-Application
.	O
</s>
<s>
Bemani	O
conceived	O
Beatmania	B-Application
IIDX	I-Application
as	O
a	O
sequel	O
to	O
Beatmania	B-Application
.	O
</s>
<s>
It	O
was	O
designed	O
to	O
simulate	O
the	O
experience	O
of	O
a	O
DJ	O
performing	O
songs	O
live	O
at	O
a	O
music	B-Application
venue	O
which	O
gave	O
it	O
a	O
"	O
club	O
Visual	O
Jockey	O
feel.	O
"	O
</s>
<s>
He	O
called	O
the	O
game	O
"	O
a	O
rocky	O
start	O
"	O
for	O
the	O
Beatmania	B-Application
IIDX	I-Application
series	O
,	O
since	O
it	O
had	O
music	B-Application
from	O
Beatmanias	B-Application
first	O
two	O
iterations	O
(	O
1st	O
Mix	O
and	O
2nd	O
Mix	O
)	O
paired	O
with	O
new	O
songs	O
and	O
remixes	O
.	O
</s>
<s>
According	O
to	O
Foster	O
,	O
many	O
players	O
were	O
initially	O
not	O
impressed	O
with	O
performing	O
old	O
songs	O
on	O
upgraded	O
hardware	O
,	O
so	O
they	O
switched	O
to	O
Beatmania	B-Application
4th	I-Application
Mix	I-Application
.	O
</s>
<s>
Bryn	O
Williams	O
of	O
GameSpy	O
found	O
IIDX	O
harder	O
than	O
the	O
original	O
Beatmania	B-Application
,	O
because	O
songs	O
that	O
take	O
advantage	O
of	O
its	O
seven	O
keys	O
have	O
more	O
notes	O
than	O
those	O
made	O
for	O
five	O
keys	O
.	O
</s>
<s>
Konami	O
decided	O
to	O
link	O
Beatmania	B-Application
IIDX	I-Application
Club	I-Application
Version	I-Application
(	O
later	O
Substream	B-Application
)	O
cabinets	O
with	O
Dance	B-Application
Dance	I-Application
Revolution	I-Application
2ndMix	I-Application
machines	O
for	O
simultaneous	O
play	O
,	O
leading	O
to	O
increased	O
success	O
.	O
</s>
<s>
In	O
late	O
1999	O
,	O
the	O
publisher	O
hired	O
artist	O
Goli	O
to	O
design	O
graphics	O
and	O
characters	O
for	O
Beatmania	B-Application
IIDX	I-Application
2nd	O
Style	O
.	O
</s>
<s>
Featuring	O
a	O
new	O
visual	O
theme	O
,	O
3rd	B-Application
Style	I-Application
was	O
ported	O
to	O
the	O
PlayStation	B-Device
2	I-Device
.	O
</s>
<s>
In	O
2002	O
,	O
8th	B-Application
Style	I-Application
was	O
released	O
after	O
the	O
discontinuation	O
of	O
the	O
original	O
Beatmania	B-Application
.	O
</s>
<s>
A	O
sequel	O
with	O
a	O
five-key	O
controller	O
,	O
Beatmania	B-Application
III	I-Application
,	O
was	O
released	O
in	O
2000	O
.	O
</s>
