<s>
is	O
a	O
Sega	B-Operating_System
Mega	I-Operating_System
Drive	I-Operating_System
Mahjong	B-Application
video	I-Application
game	I-Application
that	O
was	O
released	O
exclusively	O
in	O
Japan	O
in	O
1990	O
.	O
</s>
<s>
Part	O
of	O
the	O
Tel-Tel	O
series	O
that	O
included	O
Tel-Tel	B-Application
Stadium	I-Application
,	O
it	O
was	O
one	O
of	O
the	O
few	O
games	O
that	O
used	O
the	O
Mega	B-Application
Modem	I-Application
,	O
allowing	O
for	O
two-player	O
games	O
via	O
the	O
Sega	B-Application
Net	I-Application
Work	I-Application
System	I-Application
.	O
</s>
