<s>
Bubbler	B-Application
is	O
a	O
ZX	B-Operating_System
Spectrum	I-Operating_System
video	O
game	O
developed	O
and	O
published	O
by	O
Ultimate	O
Play	O
the	O
Game	O
in	O
1987	B-Application
.	O
</s>
<s>
The	O
game	O
is	O
an	O
isometric	O
platform	O
game	O
in	O
the	O
style	O
of	O
Marble	B-Device
Madness	I-Device
(	O
1984	O
)	O
.	O
</s>
