<s>
Tetris	B-Application
Blitz	I-Application
was	O
a	O
variant	O
of	O
Tetris	B-Device
.	O
</s>
<s>
It	O
was	O
released	O
free	O
on	O
mobile	O
platforms	O
such	O
as	O
iOS	B-Application
,	O
Android	B-Application
,	O
and	O
Windows	B-Protocol
Phone	I-Protocol
.	O
</s>
<s>
As	O
of	O
April	O
22	O
,	O
2020	O
,	O
it	O
is	O
no	O
longer	O
downloadable	O
on	O
the	O
App	B-Application
Store	I-Application
and	O
Google	B-Application
Play	I-Application
,	O
but	O
due	O
to	O
a	O
,	O
the	O
user	O
may	O
still	O
play	O
the	O
game	O
on	O
iOS	B-Application
if	O
he	O
or	O
she	O
has	O
the	O
game	O
already	O
downloaded	O
.	O
</s>
<s>
Frenzy	O
mode	O
constantly	O
adds	O
frenzy	O
blocks	O
to	O
the	O
bottom	O
half	O
of	O
the	O
screen	O
,	O
kind	O
of	O
like	O
garbage	O
in	O
multiplayer	O
versions	O
of	O
Tetris	B-Device
.	O
</s>
<s>
Google	B-Application
Play	I-Application
rates	O
it	O
with	O
4.2	O
stars	O
.	O
</s>
