<s>
World	B-Application
Class	I-Application
Baseball	I-Application
is	O
a	O
baseball	B-Application
video	O
game	O
originally	O
released	O
for	O
the	O
NEC	B-General_Concept
PC	I-General_Concept
Engine	I-General_Concept
in	O
1988	O
.	O
</s>
<s>
It	O
was	O
re-released	O
for	O
the	B-Operating_System
Wii	I-Operating_System
Virtual	B-Application
Console	I-Application
service	O
in	O
North	O
America	O
on	O
September	O
17	O
,	O
2007	O
,	O
and	O
in	O
PAL	B-Language
regions	O
on	O
September	O
21	O
,	O
2007	O
.	O
</s>
<s>
World	B-Application
Class	I-Application
Baseball	I-Application
features	O
12	O
teams	O
that	O
must	O
be	O
defeated	O
in	O
the	O
single	O
player	O
Pennant	O
Mode	O
,	O
a	O
knockout	O
competition	O
.	O
</s>
