<s>
Penguin	B-Application
Land	I-Application
,	O
known	O
as	O
in	O
Japan	O
,	O
is	O
a	O
1987	O
puzzle-platform	O
game	O
published	O
and	O
developed	O
by	O
Sega	O
for	O
the	O
Master	O
System	O
.	O
</s>
<s>
It	O
is	O
the	O
second	O
game	O
in	O
the	O
Doki	B-Application
Doki	I-Application
Penguin	I-Application
Land	I-Application
series	O
.	O
</s>
<s>
The	O
level	O
editor	O
data	O
is	O
stored	O
on	O
the	O
game	O
's	O
battery	O
back-up	O
RAM	B-Architecture
.	O
</s>
<s>
Penguin	B-Application
Land	I-Application
was	O
the	O
first	O
home	O
console	O
video	O
game	O
to	O
include	O
a	O
battery	O
backup	O
save	O
feature	O
being	O
released	O
four	O
days	O
prior	O
to	O
The	O
Legend	O
of	O
Zelda	O
in	O
the	O
US	O
.	O
</s>
