<s>
Duet	B-Application
is	O
a	O
2013	O
action	B-Application
game	I-Application
by	O
Australian	O
game	O
developer	O
Kumobius	B-Application
for	O
iOS	B-Application
and	O
Android	B-Application
.	O
</s>
<s>
Its	O
Android	B-Application
version	O
was	O
first	O
released	O
as	O
a	O
part	O
of	O
Humble	O
Mobile	O
Bundle	O
6	O
.	O
</s>
<s>
Duet	B-Application
is	O
also	O
listed	O
a	O
score	O
of	O
80.00	O
%	O
on	O
GameRankings	O
.	O
</s>
<s>
Critics	O
praise	O
Duet	B-Application
for	O
its	O
controls	O
and	O
design	O
,	O
yet	O
noting	O
its	O
notorious	O
difficulty	O
.	O
</s>
<s>
It	O
is	O
rated	O
4.9/5	O
on	O
Apple	B-Application
's	I-Application
App	I-Application
Store	I-Application
,	O
and	O
4.7/5	O
on	O
Google	B-Application
's	I-Application
Play	I-Application
Store	I-Application
.	O
</s>
<s>
Duet	B-Application
is	O
also	O
rated	O
9/10	O
on	O
Steam	B-Application
.	O
</s>
