<s>
International	B-Application
Karate	I-Application
+	I-Application
,	O
stylized	O
as	O
IK+	B-Application
,	O
is	O
a	O
fighting	O
game	O
written	O
by	O
Archer	O
Maclean	O
and	O
published	O
in	O
1987	O
by	O
System	O
3	O
for	O
the	O
Commodore	O
64	O
,	O
Amstrad	B-Device
CPC	I-Device
,	O
and	O
ZX	B-Operating_System
Spectrum	I-Operating_System
.	O
</s>
<s>
It	O
is	O
a	O
successor	O
to	O
International	B-Application
Karate	I-Application
(	O
1985	O
)	O
.	O
</s>
<s>
Activision	O
published	O
the	O
Commodore	O
64	O
version	O
in	O
the	O
US	O
as	O
Chop	B-Application
N	I-Application
 '	I-Application
Drop	I-Application
.	O
</s>
<s>
After	O
every	O
two	O
rounds	O
,	O
there	O
is	O
a	O
bonus	O
game	O
which	O
is	O
either	O
deflecting	O
bouncing	B-Application
balls	I-Application
or	O
kicking	O
away	O
bombs	O
.	O
</s>
<s>
Unlike	O
its	O
predecessor	O
,	O
International	B-Application
Karate	I-Application
,	O
there	O
is	O
only	O
one	O
backdrop	O
.	O
</s>
<s>
The	O
Amiga	B-Device
,	O
Atari	O
and	O
C64	O
versions	O
of	O
the	O
game	O
(	O
and	O
possibly	O
other	O
versions	O
,	O
unconfirmed	O
)	O
had	O
a	O
number	O
of	O
"	O
background	O
antics	O
"	O
,	O
a	O
Pac-Man	O
would	O
appear	O
,	O
a	O
spider	O
would	O
descend	O
,	O
and	O
a	O
U-boat	O
'	O
s	O
periscope	O
would	O
occasionally	O
be	O
seen	O
in	O
the	O
harbour	O
.	O
</s>
<s>
Additionally	O
,	O
it	O
was	O
possible	O
(	O
on	O
the	O
Amiga	B-Device
version	O
,	O
at	O
least	O
)	O
to	O
type	O
in	O
four-letter	O
curse	O
words	O
;	O
the	O
game	O
would	O
respond	O
first	O
by	O
rebuking	O
the	O
player	O
for	O
their	O
use	O
of	O
such	O
language	O
,	O
and	O
upon	O
the	O
second	O
offence	O
would	O
reset	O
the	O
game	O
.	O
</s>
<s>
Music	O
for	O
the	O
Amiga	B-Device
version	O
was	O
arranged	O
by	O
Dave	O
Lowe	O
.	O
</s>
<s>
The	O
packaging	O
illustration	O
for	O
the	O
Activision	O
Commodore	O
64	O
release	O
version	O
of	O
IK+	B-Application
,	O
entitled	O
"	O
Chop	O
'	O
N	O
Drop	O
"	O
,	O
was	O
created	O
by	O
Marc	O
Ericksen	O
.	O
</s>
<s>
16-bit	O
versions	O
of	O
the	O
game	O
were	O
released	O
in	O
1988	O
for	O
the	O
Atari	B-Device
ST	I-Device
and	O
Amiga	B-Device
home	O
computers	O
.	O
</s>
<s>
Apart	O
from	O
the	O
music	O
,	O
which	O
was	O
arranged	O
by	O
Dave	O
Lowe	O
,	O
the	O
Atari	B-Device
ST	I-Device
version	O
was	O
created	O
entirely	O
by	O
Archer	O
Maclean	O
.	O
</s>
<s>
The	O
bitmap	O
editor	O
NeoChrome	B-Application
was	O
used	O
to	O
draw	O
background	O
graphics	O
and	O
sprites	O
and	O
the	O
code	O
was	O
written	O
in	O
assembly	B-Language
language	I-Language
on	O
an	O
IBM	O
PC-based	O
development	O
system	O
that	O
cross-compiled	O
the	O
800	O
KBytes	O
of	O
source	O
code	O
in	O
seven	O
seconds	O
and	O
transferred	O
the	O
program	O
to	O
the	O
RAM	O
of	O
the	O
Atari	B-Device
ST	I-Device
via	O
a	O
parallel	O
cable	O
.	O
</s>
<s>
The	O
subsequent	O
Amiga	B-Device
port	O
took	O
just	O
seven	O
days	O
.	O
</s>
<s>
Another	O
International	B-Application
Karate	I-Application
Deluxe	O
game	O
(	O
AKA	O
IK++	O
)	O
was	O
ready	O
but	O
unreleased	O
for	O
the	O
Atari	B-Device
ST	I-Device
and	O
Amiga	B-Device
in	O
1987/1988	O
.	O
</s>
<s>
A	O
version	O
for	O
Amiga	B-Device
CD32	I-Device
was	O
released	O
in	O
1994	O
.	O
</s>
<s>
In	O
2003	O
,	O
Maclean	O
's	O
Ignition	O
Entertainment	O
released	O
IK+	B-Application
for	O
the	O
Game	B-Device
Boy	I-Device
Advance	I-Device
and	O
PlayStation	B-Device
in	O
Europe	O
,	O
which	O
remained	O
faithful	O
to	O
the	O
16-bit	O
iterations	O
.	O
</s>
<s>
The	O
C64	O
version	O
was	O
re-released	O
on	O
the	O
Virtual	B-Application
Console	I-Application
in	O
Europe	O
on	O
July	O
25	O
,	O
2008	O
.	O
</s>
