<s>
Nano	B-Device
Assault	I-Device
is	O
a	O
shoot	O
'	O
em	O
up	O
video	O
game	O
developed	O
by	O
Shin'en	O
Multimedia	O
for	O
the	O
Nintendo	B-Operating_System
3DS	I-Operating_System
,	O
originally	O
published	O
as	O
a	O
retail	O
title	O
by	O
Majesco	O
Entertainment	O
in	O
2011	O
,	O
while	O
the	O
Japanese	O
version	O
was	O
published	O
by	O
CyberFront	O
on	O
19	O
April	O
2012	O
.	O
</s>
<s>
It	O
is	O
the	O
spiritual	O
successor	O
to	O
the	O
Nintendo	B-Device
DS	I-Device
games	O
Nanostray	B-Device
and	O
Nanostray	B-Device
2	I-Device
.	O
</s>
<s>
In	O
March	O
2013	O
,	O
Shin'en	O
published	O
an	O
enhanced	O
version	O
entitled	O
Nano	B-Device
Assault	I-Device
EX	I-Device
,	O
with	O
visual	O
improvements	O
and	O
additional	O
gameplay	O
features	O
.	O
</s>
<s>
This	O
version	O
is	O
distributed	O
exclusively	O
via	O
the	O
Nintendo	B-Application
eShop	I-Application
.	O
</s>
<s>
Nano	B-Device
Assault	I-Device
received	O
"	O
generally	O
favourable	O
reviews	O
"	O
according	O
to	O
the	O
review	B-Application
aggregation	I-Application
website	O
Metacritic	O
.	O
</s>
<s>
Nano	B-Device
Assault	I-Device
EX	I-Device
received	O
above-average	O
reviews	O
according	O
to	O
Metacritic	O
.	O
</s>
