<s>
Barrier	O
is	O
a	O
maze	B-Application
arcade	O
game	O
using	O
vector	B-General_Concept
graphics	I-General_Concept
released	O
by	O
Vectorbeam	B-Application
in	O
1979	B-Application
.	O
</s>
<s>
The	O
game	O
was	O
sold	O
to	O
Vectorbeam	B-Application
by	O
Cinematronics	O
.	O
</s>
<s>
Reaching	O
the	O
end	O
of	O
the	O
grid	O
teleports	B-General_Concept
the	O
player	O
back	O
to	O
the	O
front	O
of	O
the	O
grid	O
to	O
gain	O
points	O
.	O
</s>
