<s>
Tetris	B-Application
Zone	I-Application
is	O
a	O
Tetris	B-Device
game	O
for	O
the	O
Macintosh	B-Device
platform	O
and	O
was	O
released	O
as	O
a	O
Universal	B-Operating_System
binary	I-Operating_System
for	O
Apple	O
computers	O
.	O
</s>
<s>
It	O
is	O
Alexey	O
Pajitnov	O
's	O
favorite	O
version	O
of	O
Tetris	B-Device
.	O
</s>
<s>
Gameplay	O
was	O
nearly	O
identical	O
in	O
gameplay	O
to	O
other	O
Tetris	B-Device
titles	O
,	O
but	O
with	O
a	O
different	O
soundtrack	O
.	O
</s>
<s>
Marathon	O
mode	O
played	O
as	O
a	O
more	O
classic	O
version	O
of	O
Tetris	B-Device
,	O
where	O
a	O
point	O
system	O
along	O
with	O
number	O
of	O
lines	O
cleared	O
were	O
kept	O
as	O
indicators	O
of	O
progress	O
.	O
</s>
<s>
On	O
2014	O
,	O
the	O
game	O
was	O
discontinued	O
without	O
prior	O
notice	O
from	O
the	O
official	O
website	O
and	O
replaced	O
by	O
Tetris.com,	O
a	O
simpler	O
online	O
version	O
.	O
</s>
