<s>
Loco-Motion	B-Application
,	O
known	O
as	O
in	O
Japan	O
,	O
is	O
an	O
arcade	O
puzzle	O
game	O
developed	O
by	O
Konami	O
in	O
1982	B-Application
and	O
released	O
by	O
Sega	O
in	O
Japan	O
.	O
</s>
<s>
In	O
Loco-Motion	B-Application
,	O
the	O
player	O
builds	O
a	O
path	O
for	O
their	O
unstoppable	O
locomotive	O
by	O
moving	O
tracks	O
which	O
will	O
allow	O
it	O
to	O
pick	O
up	O
passengers	O
.	O
</s>
<s>
The	O
game	O
was	O
ported	O
to	O
Intellivision	B-Operating_System
,	O
the	O
Tomy	O
Tutor	O
,	O
and	O
–	O
under	O
a	O
different	O
name	O
–	O
MSX	B-Operating_System
.	O
</s>
<s>
A	O
clone	O
programmed	O
by	O
Carol	O
Shaw	O
of	O
Activision	O
,	O
Happy	B-Application
Trails	I-Application
,	O
was	O
published	O
for	O
Intellivision	B-Operating_System
before	O
the	O
official	O
version	O
was	O
released	O
.	O
</s>
<s>
Loco-Motion	B-Application
is	O
an	O
updated	O
version	O
of	O
a	O
sliding	O
block	O
puzzle	O
game	O
in	O
which	O
the	O
player	O
can	O
move	O
tiles	O
horizontally	O
or	O
vertically	O
within	O
a	O
rectangular	O
frame	O
that	O
contains	O
one	O
empty	O
square	O
.	O
</s>
<s>
The	O
player	O
uses	O
a	O
joystick	B-Device
to	O
slide	O
a	O
piece	O
of	O
the	O
track	O
into	O
the	O
vacant	O
square	O
and	O
can	O
use	O
a	O
button	O
to	O
accelerate	O
the	O
locomotive	O
.	O
</s>
<s>
Loco-Motion	B-Application
was	O
ported	O
to	O
Intellivision	B-Operating_System
(	O
published	O
by	O
Mattel	O
)	O
and	O
the	O
Tomy	O
Tutor	O
.	O
</s>
<s>
Activision	O
's	O
Happy	B-Application
Trails	I-Application
,	O
with	O
strikingly	O
similar	O
gameplay	O
,	O
was	O
released	O
prior	O
to	O
the	O
Intellivision	B-Operating_System
port	O
of	O
Loco-Motion	B-Application
.	O
</s>
<s>
Positive	O
reviews	O
of	O
Happy	B-Application
Trails	I-Application
resulted	O
in	O
Mattel	O
releasing	O
Loco-Motion	B-Application
at	O
a	O
reduced	O
price	O
.	O
</s>
<s>
An	O
MSX	B-Operating_System
port	O
from	O
Konami	O
itself	O
was	O
published	O
as	O
Crazy	O
Train	O
.	O
</s>
<s>
An	O
M	O
Network	O
version	O
for	O
the	O
Atari	B-General_Concept
2600	I-General_Concept
was	O
canceled	O
on	O
July	O
5	O
,	O
1983	O
for	O
unknown	O
reasons	O
.	O
</s>
<s>
Game	B-Device
Boy	I-Device
and	O
Game	B-Device
Boy	I-Device
Color	I-Device
ports	O
were	O
released	O
in	O
Japan	O
and	O
the	O
UK	O
as	O
part	O
of	O
the	O
four	O
volume	O
Konami	O
GB	O
Collection	O
.	O
</s>
<s>
In	O
Japan	O
the	O
game	O
was	O
released	O
for	O
Game	B-Device
Boy	I-Device
with	O
Super	O
Game	B-Device
Boy	I-Device
features	O
,	O
yet	O
in	O
the	O
UK	O
it	O
was	O
colorized	O
and	O
translated	O
into	O
English	O
for	O
the	O
Game	B-Device
Boy	I-Device
Color	I-Device
.	O
</s>
<s>
Confuzion	B-Application
(	O
1985	O
)	O
for	O
the	O
ZX	B-Operating_System
Spectrum	I-Operating_System
and	O
Commodore	O
64	O
is	O
similar	O
in	O
design	O
to	O
Loco-Motion	B-Application
.	O
</s>
<s>
Junction	B-Application
(	O
1990	O
)	O
for	O
the	O
Sega	B-Operating_System
Genesis	I-Operating_System
is	O
similar	O
in	O
concept	O
with	O
isometric	O
graphics	O
.	O
</s>
