<s>
is	O
a	O
2019	O
battle	O
royale	O
puzzle	O
video	O
game	O
developed	O
by	O
Arika	O
and	O
published	O
by	O
Nintendo	O
for	O
the	O
Nintendo	B-Application
Switch	I-Application
.	O
</s>
<s>
It	O
is	O
an	O
online	O
multiplayer	O
adaptation	O
of	O
Tetris	B-Application
(	O
1985	O
)	O
:	O
players	O
move	O
and	O
drop	O
puzzle	O
pieces	O
called	O
tetrominoes	O
onto	O
a	O
playing	O
board	O
,	O
and	O
must	O
clear	O
rows	O
by	O
filling	O
them	O
completely	O
with	O
pieces	O
.	O
</s>
<s>
Tetris	B-Application
99	I-Application
was	O
released	O
as	O
a	O
free	O
digital	O
download	O
for	O
Nintendo	B-Application
Switch	I-Application
Online	I-Application
subscribers	O
.	O
</s>
<s>
Paid	O
downloadable	B-Protocol
content	I-Protocol
and	O
a	O
retail	O
edition	O
have	O
released	O
subsequently	O
.	O
</s>
<s>
Arika	O
would	O
later	O
develop	O
similar	O
games	O
to	O
Tetris	B-Application
99	I-Application
for	O
other	O
popular	O
video	O
game	O
series	O
.	O
</s>
<s>
Tetris	B-Application
99	I-Application
is	O
a	O
multiplayer	O
puzzle	O
game	O
in	O
which	O
99	O
players	O
play	O
against	O
each	O
other	O
at	O
the	O
same	O
time	O
,	O
with	O
the	O
aim	O
to	O
be	O
the	O
last	O
player	O
remaining	O
.	O
</s>
<s>
As	O
with	O
the	O
traditional	O
Tetris	B-Application
formula	O
,	O
players	O
rotate	O
and	O
drop	O
shaped	O
bricks	O
known	O
as	O
tetrominoes	O
onto	O
a	O
board	O
.	O
</s>
<s>
As	O
with	O
modern	O
Tetris	B-Application
rules	O
,	O
players	O
have	O
the	O
option	O
to	O
store	O
a	O
tetromino	O
piece	O
to	O
swap	O
out	O
at	O
any	O
time	O
.	O
</s>
<s>
More	O
garbage	O
can	O
be	O
sent	O
by	O
completing	O
combination	O
moves	O
in	O
succession	O
of	O
making	O
a	O
"	O
tetris	B-Application
"	O
(	O
matching	O
4	O
lines	O
at	O
once	O
)	O
or	O
performing	O
a	O
"	O
T-spin	O
"	O
(	O
squeezing	O
the	O
T-shaped	O
tetromino	O
into	O
a	O
position	O
it	O
would	O
otherwise	O
not	O
fall	O
into	O
by	O
rapidly	O
rotating	O
it	O
)	O
.	O
</s>
<s>
In	O
May	O
2019	O
,	O
Nintendo	O
released	O
paid	O
downloadable	B-Protocol
content	I-Protocol
(	O
DLC	B-Protocol
)	O
for	O
the	O
game	O
,	O
named	O
the	O
Big	O
Block	O
DLC	B-Protocol
.	O
</s>
<s>
The	O
DLC	B-Protocol
adds	O
4	O
offline	O
modes	O
in	O
total	O
:	O
Marathon	O
,	O
the	O
traditional	O
single-player	O
Tetris	B-Application
mode	O
where	O
play	O
continues	O
until	O
the	O
stack	O
reaches	O
the	O
top	O
of	O
the	O
well	O
;	O
CPU	O
Battle	O
,	O
where	O
players	O
battle	O
98	O
bot	O
players	O
;	O
Local	O
Arena	O
,	O
where	O
up	O
to	O
eight	O
Nintendo	B-Application
Switch	I-Application
players	O
play	O
in	O
the	O
same	O
arena	O
via	O
local	O
wireless	O
;	O
and	O
Two	O
Player	O
Share	O
Battle	O
,	O
where	O
two	O
players	O
share	O
Joy-Con	O
and	O
play	O
the	O
same	O
game	O
in	O
local	O
co-op	O
.	O
</s>
<s>
Tetris	B-Application
99	I-Application
was	O
announced	O
during	O
a	O
Nintendo	O
Direct	O
presentation	O
on	O
February	O
13	O
,	O
2019	O
,	O
and	O
made	O
available	O
later	O
that	O
day	O
.	O
</s>
<s>
It	O
is	O
available	O
for	O
free	O
exclusively	O
to	O
players	O
who	O
have	O
subscribed	O
to	O
the	O
Nintendo	B-Application
Switch	I-Application
Online	I-Application
service	O
.	O
</s>
<s>
The	O
physical	O
edition	O
includes	O
the	O
Big	O
Block	O
DLC	B-Protocol
content	O
and	O
a	O
12-month	O
Nintendo	B-Application
Switch	I-Application
Online	I-Application
voucher	O
.	O
</s>
<s>
In	O
addition	O
,	O
later	O
events	O
would	O
be	O
used	O
to	O
promote	O
other	O
Nintendo	B-Application
Switch	I-Application
games	O
by	O
offering	O
exclusive	O
themes	O
consisting	O
of	O
new	O
sound	O
effects	O
,	O
background	O
music	O
,	O
sprites	O
and	O
UI	O
elements	O
based	O
on	O
current	O
releases	O
.	O
</s>
<s>
Upon	O
release	O
,	O
Tetris	B-Application
99	I-Application
received	O
"	O
generally	O
favorable	O
reviews	O
"	O
according	O
to	O
the	O
review	B-Application
aggregator	I-Application
Metacritic	O
.	O
</s>
<s>
According	O
to	O
IGN	O
Tetris	B-Application
99	I-Application
is	O
a	O
"	O
wondrous	O
pandemonium	O
in	O
a	O
battle	O
royale	O
bottle	O
"	O
and	O
that	O
"	O
the	O
massive	O
player	O
count	O
really	O
ups	O
the	O
intensity.	O
"	O
</s>
<s>
During	O
a	O
financial	O
results	O
briefing	O
,	O
Nintendo	O
president	O
Shuntaro	O
Furukawa	O
reported	O
that	O
Tetris	B-Application
99	I-Application
had	O
been	O
played	O
by	O
over	O
2.8	O
million	O
accounts	O
as	O
of	O
April	O
2019	O
.	O
</s>
<s>
Furukawa	O
also	O
noted	O
that	O
the	O
game	O
has	O
boosted	O
"	O
user	O
engagement	O
"	O
with	O
the	O
Nintendo	B-Application
Switch	I-Application
.	O
</s>
<s>
Alexey	O
Pajitnov	O
,	O
the	O
creator	O
of	O
the	O
original	O
Tetris	B-Application
,	O
stated	O
that	O
he	O
,	O
"love[s]	O
the	O
game	O
"	O
and	O
called	O
it	O
,	O
"	O
one	O
of	O
the	O
best	O
games	O
of	O
Tetris	B-Application
of	O
the	O
last	O
year	O
.	O
</s>
