<s>
Nodes	B-Application
of	I-Application
Yesod	I-Application
is	O
a	O
video	O
game	O
developed	O
and	O
published	O
by	O
Odin	O
Computer	O
Graphics	O
in	O
1985	O
.	O
</s>
<s>
The	O
game	O
is	O
similar	O
in	O
style	O
to	O
Underwurlde	B-Application
by	O
Ultimate	O
Play	O
the	O
Game	O
,	O
which	O
was	O
released	O
a	O
year	O
earlier	O
,	O
and	O
Metroid	B-Device
which	O
was	O
released	O
a	O
year	O
later	O
,	O
in	O
1986	O
.	O
</s>
<s>
The	O
game	O
was	O
released	O
for	O
the	O
Amstrad	B-Device
CPC	I-Device
,	O
Commodore	O
64	O
,	O
Elan	O
Enterprise	B-Operating_System
64	I-Operating_System
and	I-Operating_System
128	I-Operating_System
and	O
ZX	B-Operating_System
Spectrum	I-Operating_System
platforms	O
.	O
</s>
<s>
Versions	O
were	O
also	O
planned	O
for	O
the	O
BBC	B-Device
Micro	I-Device
and	O
MSX	B-Operating_System
platforms	O
but	O
these	O
were	O
cancelled	O
.	O
</s>
<s>
On	O
the	O
ZX	B-Operating_System
Spectrum	I-Operating_System
,	O
the	O
game	O
came	O
in	O
separate	O
48K	O
and	O
128K	O
versions	O
.	O
</s>
<s>
A	O
sequel	O
,	O
The	B-Application
Arc	I-Application
of	I-Application
Yesod	I-Application
,	O
was	O
also	O
published	O
the	O
same	O
year	O
.	O
</s>
<s>
A	O
"	O
25th	O
Anniversary	O
Edition	O
"	O
was	O
released	O
in	O
2010	O
for	O
the	O
iPhone	B-Device
and	O
iOS	B-Operating_System
(	O
Apple	O
)	O
devices	O
.	O
</s>
<s>
This	O
version	O
included	O
a	O
"	O
classic	O
mode	O
"	O
(	O
very	O
similar	O
to	O
the	O
original	O
ZX	B-Operating_System
Spectrum	I-Operating_System
version	O
)	O
and	O
an	O
"	O
enhanced	O
mode	O
"	O
,	O
which	O
featured	O
new	O
colour	O
graphics	O
,	O
help	O
system	O
,	O
map	O
system	O
,	O
save/resume	O
game	O
feature	O
and	O
remixed	O
music	O
.	O
</s>
<s>
Nodes	B-Application
of	I-Application
Yesod	I-Application
is	O
a	O
flick-screen	O
platform	O
game	O
.	O
</s>
<s>
Once	O
he	O
has	O
collected	O
one	O
of	O
these	O
creatures	O
,	O
he	O
can	O
release	O
it	O
in	O
the	O
caverns	O
when	O
required	O
and	O
it	O
will	O
chew-through	O
any	O
walls	O
it	O
can	O
,	O
revealing	O
new	O
areas	O
of	O
the	O
maze	B-Application
.	O
</s>
<s>
There	O
are	O
two	O
kinds	O
of	O
monster	O
in	O
Nodes	B-Application
of	I-Application
Yesod	I-Application
-	O
harmful	O
and	O
non-harmful	O
.	O
</s>
<s>
The	O
non-harmful	O
creatures	O
wo	O
n't	O
do	O
Charlie	O
any	O
damage	O
but	O
will	O
cause	O
him	O
to	O
bounce	O
around	O
(	O
similarly	O
to	O
the	O
creatures	O
in	O
Underwurlde	B-Application
)	O
and	O
are	O
thus	O
a	O
nuisance	O
.	O
</s>
<s>
The	O
ZX	B-Operating_System
Spectrum	I-Operating_System
version	O
was	O
voted	O
the	O
30th	O
best	O
game	O
of	O
all	O
time	O
in	O
a	O
special	O
issue	O
of	O
Your	O
Sinclair	O
magazine	O
in	O
2004	O
.	O
</s>
<s>
Stuart	O
Fotheringham	O
,	O
one	O
of	O
the	O
artists	O
and	O
game	O
designers	O
on	O
Nodes	B-Application
of	I-Application
Yesod	I-Application
,	O
claims	O
that	O
an	O
earlier	O
finished	O
version	O
of	O
the	O
map	O
and	O
screen	O
layouts	O
was	O
created	O
but	O
was	O
lost	O
in	O
a	O
Microdrive	B-Device
crash	O
and	O
the	O
maps	O
and	O
screens	O
had	O
to	O
be	O
recreated	O
from	O
scratch	O
.	O
</s>
