<s>
It	O
is	O
the	O
sixth	O
game	O
in	O
the	O
Mario	O
&	O
Sonic	B-Application
series	I-Application
,	O
a	O
crossover	O
between	O
Nintendo	O
's	O
Super	B-Application
Mario	I-Application
and	O
Sega	O
's	O
Sonic	B-Application
the	I-Application
Hedgehog	I-Application
franchises	O
,	O
and	O
the	O
first	O
since	O
the	O
Rio	B-Application
2016	I-Application
Olympic	I-Application
Games	I-Application
edition	O
.	O
</s>
<s>
It	O
was	O
developed	O
and	O
published	O
by	O
Sega	O
for	O
the	O
Nintendo	B-Application
Switch	I-Application
in	O
November	O
2019	O
and	O
for	O
arcade	O
cabinets	O
in	O
2020	O
.	O
</s>
<s>
Like	O
previous	O
Mario	O
&	O
Sonic	B-Application
titles	O
,	O
Mario	B-Application
&	I-Application
Sonic	I-Application
at	I-Application
the	I-Application
Olympic	I-Application
Games	I-Application
Tokyo	I-Application
2020	I-Application
is	O
a	O
sports	O
game	O
featuring	O
a	O
crossover	O
cast	O
of	O
characters	O
from	O
Nintendo	O
's	O
Super	B-Application
Mario	I-Application
and	O
Sega	O
's	O
Sonic	B-Application
the	I-Application
Hedgehog	I-Application
series	I-Application
.	O
</s>
<s>
The	O
player	O
,	O
using	O
one	O
of	O
the	O
characters	O
,	O
competes	O
in	O
a	O
multitude	O
of	O
events	O
based	O
on	O
sports	O
from	O
the	O
Olympic	B-Application
Games	I-Application
.	O
</s>
<s>
The	O
game	O
features	O
a	O
variety	O
of	O
events	O
;	O
returning	O
ones	O
from	O
previous	O
Mario	O
&	O
Sonic	B-Application
titles	O
include	O
boxing	O
,	O
soccer	O
,	O
swimming	O
,	O
and	O
gymnastics	O
,	O
while	O
new	O
ones	O
include	O
karate	O
,	O
skateboarding	O
,	O
sport	O
climbing	O
,	O
and	O
surfing	O
.	O
</s>
<s>
The	O
Nintendo	B-Application
Switch	I-Application
version	O
supports	O
a	O
variety	O
of	O
controllers	O
,	O
including	O
the	O
Joy-Con	B-General_Concept
motion	B-Device
controllers	I-Device
.	O
</s>
<s>
The	O
game	O
also	O
features	O
single	O
system	O
split-screen	O
multiplayer	O
,	O
LAN	O
multiplayer	O
,	O
and	O
online	B-Application
play	I-Application
.	O
</s>
<s>
An	O
additional	O
2D	O
Mode	O
is	O
also	O
included	O
,	O
based	O
on	O
the	O
1964	O
Summer	O
Olympics	O
,	O
and	O
featuring	O
8-bit	B-Application
and	O
16-bit	B-Application
styles	O
for	O
Mario	O
and	O
Sonic	B-Application
,	O
respectively	O
.	O
</s>
<s>
These	O
2D	O
Mode	O
events	O
have	O
more	O
limited	O
controls	O
and	O
the	O
option	O
to	O
enable	O
a	O
CRT	B-Device
overlay	O
to	O
further	O
emulate	O
the	O
feel	O
of	O
games	O
of	O
that	O
era	O
.	O
</s>
<s>
Similar	O
to	O
the	O
Wii	B-Device
U	I-Device
version	O
of	O
the	O
previous	O
game	O
,	O
the	O
series	O
 '	O
regulars	O
since	O
the	O
second	O
game	O
are	O
playable	O
in	O
all	O
events	O
while	O
the	O
other	O
twelve	O
are	O
only	O
playable	O
in	O
one	O
event	O
as	O
a	O
guest	O
.	O
</s>
<s>
Mario	B-Application
&	I-Application
Sonic	I-Application
at	I-Application
the	I-Application
Olympic	I-Application
Games	I-Application
Tokyo	I-Application
2020	I-Application
was	O
announced	O
alongside	O
Olympic	B-Application
Games	I-Application
Tokyo	I-Application
2020	I-Application
-	I-Application
The	I-Application
Official	I-Application
Video	I-Application
Game	I-Application
on	O
March	O
29	O
,	O
2019	O
,	O
at	O
the	O
Sega	O
Fes	O
stage	O
show	O
in	O
Japan	O
.	O
</s>
<s>
It	O
was	O
the	O
first	O
Mario	O
&	O
Sonic	B-Application
game	O
since	O
the	O
Rio	B-Application
2016	I-Application
Olympic	I-Application
Games	I-Application
edition	O
for	O
the	O
Wii	B-Device
U	I-Device
and	O
Nintendo	B-Operating_System
3DS	I-Operating_System
,	O
and	O
was	O
released	O
worldwide	O
for	O
the	O
Nintendo	B-Application
Switch	I-Application
in	O
November	O
2019	O
;	O
a	O
version	O
for	O
arcade	O
cabinets	O
will	O
release	O
sometime	O
in	O
2020	O
.	O
</s>
<s>
A	O
companion	O
game	O
for	O
Android	B-Application
and	O
iOS	B-Application
,	O
Sonic	B-Application
at	O
the	O
Olympic	B-Application
Games	I-Application
-	O
Tokyo	B-Application
2020	I-Application
,	O
was	O
also	O
released	O
in	O
2020	O
.	O
</s>
<s>
Mario	B-Application
&	I-Application
Sonic	I-Application
at	I-Application
the	I-Application
Olympic	I-Application
Games	I-Application
Tokyo	I-Application
2020	I-Application
was	O
the	O
final	O
game	O
AlphaDream	O
worked	O
on	O
before	O
it	O
filed	O
for	O
bankruptcy	O
in	O
2019	O
.	O
</s>
<s>
Racjin	O
,	O
Yuke	O
's	O
,	O
and	O
Success	O
Corp	O
also	O
worked	O
on	O
the	O
game	O
;	O
Racjin	O
helped	O
develop	O
previous	O
Mario	O
&	O
Sonic	B-Application
games	O
,	O
while	O
Yuke	O
's	O
helped	O
Sega	O
develop	O
Olympic	B-Application
Games	I-Application
Tokyo	I-Application
2020	I-Application
-	I-Application
The	I-Application
Official	I-Application
Video	I-Application
Game	I-Application
.	O
</s>
<s>
A	O
tie-in	O
free-to-start	O
mobile	O
game	O
Sonic	B-Application
at	O
the	O
Olympic	B-Application
Games	I-Application
-	O
Tokyo	B-Application
2020	I-Application
was	O
released	O
for	O
on	O
Android	B-Application
and	O
iOS	B-Application
on	O
May	O
7	O
,	O
2020	O
.	O
</s>
<s>
Like	O
its	O
predecessor	O
Sonic	B-Application
at	O
the	O
Olympic	O
Winter	O
Games	O
,	O
it	O
features	O
similar	O
gameplay	O
to	O
the	O
main	O
game	O
,	O
albeit	O
lack	O
of	O
Mario	O
characters	O
and	O
the	O
2D	O
mode	O
,	O
additional	O
events	O
,	O
and	O
a	O
new	O
story	O
.	O
</s>
<s>
Despite	O
the	O
delay	O
of	O
the	O
Tokyo	O
Olympic	B-Application
Games	I-Application
from	O
2020	O
to	O
2021	O
due	O
to	O
the	O
COVID-19	O
pandemic	O
,	O
the	O
game	O
retained	O
the	O
"	O
Olympic	B-Application
Games	I-Application
Tokyo	B-Application
2020	I-Application
"	O
name	O
for	O
branding	O
purposes	O
.	O
</s>
<s>
Mario	B-Application
&	I-Application
Sonic	I-Application
at	I-Application
the	I-Application
Olympic	I-Application
Games	I-Application
Tokyo	I-Application
2020	I-Application
has	O
received	O
"	O
mixed	O
or	O
average	O
reviews	O
"	O
from	O
critics	O
according	O
to	O
the	O
review	B-Application
aggregator	I-Application
Metacritic	O
.	O
</s>
<s>
The	O
game	O
has	O
also	O
received	O
praise	O
for	O
the	O
story	O
mode	O
for	O
having	O
its	O
own	O
mini-games	O
,	O
references	O
to	O
various	O
Mario	O
and	O
Sonic	B-Application
games	O
,	O
respectively	O
,	O
humor	O
,	O
and	O
Olympic	O
history	O
.	O
</s>
<s>
Also	O
,	O
the	O
game	O
has	O
received	O
praise	O
for	O
the	O
2D	O
events	O
for	O
adding	O
value	O
for	O
fans	O
of	O
the	O
retro	O
Mario	O
and	O
Sonic	B-Application
style	O
,	O
as	O
well	O
as	O
emulating	O
the	O
feel	O
of	O
sports	O
games	O
of	O
that	O
era	O
,	O
such	O
as	O
Track	B-Application
&	I-Application
Field	I-Application
.	O
</s>
<s>
The	O
online	O
mode	O
has	O
been	O
criticized	O
due	O
to	O
lag	B-Application
,	O
especially	O
when	O
playing	O
with	O
8	O
players	O
,	O
although	O
2	O
to	O
4	O
players	O
online	O
has	O
been	O
reported	O
to	O
be	O
smoother	O
,	O
with	O
less	O
lag	B-Application
.	O
</s>
