<s>
Back	B-Application
to	I-Application
the	I-Application
Future	I-Application
Part	I-Application
II	I-Application
is	O
a	O
1990	O
action	B-Application
game	I-Application
based	O
on	O
the	O
1989	O
film	B-Application
of	I-Application
the	I-Application
same	I-Application
name	I-Application
.	O
</s>
<s>
It	O
was	O
developed	O
and	O
published	O
by	O
Image	O
Works	O
for	O
Amiga	B-Device
,	O
Amstrad	B-Device
CPC	I-Device
,	O
Atari	B-Device
ST	I-Device
,	O
Commodore	O
64	O
,	O
MS-DOS	B-Application
,	O
Master	O
System	O
,	O
and	O
ZX	B-Operating_System
Spectrum	I-Operating_System
.	O
</s>
<s>
It	O
was	O
followed	O
by	O
Back	B-Application
to	I-Application
the	I-Application
Future	I-Application
Part	I-Application
III	I-Application
.	O
</s>
<s>
Back	B-Application
to	I-Application
the	I-Application
Future	I-Application
Part	I-Application
II	I-Application
features	O
five	O
levels	O
based	O
on	O
scenes	O
from	O
the	O
film	O
.	O
</s>
<s>
The	O
third	O
level	O
is	O
a	O
side-scrolling	B-Application
beat	I-Application
'	I-Application
em	I-Application
up	I-Application
in	O
which	O
Marty	O
returns	O
to	O
1985	O
and	O
discovers	O
that	O
Hill	O
Valley	O
has	O
changed	O
due	O
to	O
an	O
alteration	O
in	O
the	O
timeline	O
:	O
in	O
1955	O
,	O
Biff	O
Tannen	O
,	O
through	O
his	O
future	O
self	O
,	O
obtained	O
a	O
sports	O
almanac	O
from	O
2015	O
and	O
used	O
it	O
to	O
become	O
a	O
millionaire	O
through	O
sports	O
betting	O
.	O
</s>
<s>
The	O
story	O
is	O
continued	O
in	O
Back	B-Application
to	I-Application
the	I-Application
Future	I-Application
Part	I-Application
III	I-Application
.	O
</s>
<s>
Back	B-Application
to	I-Application
the	I-Application
Future	I-Application
Part	I-Application
II	I-Application
was	O
released	O
in	O
the	O
U.K.	O
in	O
1990	O
,	O
for	O
Amiga	B-Device
,	O
Amstrad	B-Device
CPC	I-Device
,	O
Atari	B-Device
ST	I-Device
,	O
Commodore	O
64	O
,	O
and	O
ZX	B-Operating_System
Spectrum	I-Operating_System
.	O
</s>
<s>
In	O
the	O
U.S.	O
,	O
Konami	O
published	O
the	O
DOS	B-Device
version	O
in	O
early	O
1991	O
.	O
</s>
<s>
Back	B-Application
to	I-Application
the	I-Application
Future	I-Application
Part	I-Application
II	I-Application
was	O
criticized	O
as	O
a	O
poor	O
conversion	O
of	O
the	O
film	O
.	O
</s>
<s>
Mark	O
Patterson	O
of	O
CU	O
Amiga	B-Device
wrote	O
:	O
"	O
There	O
's	O
so	O
many	O
crossover	O
plots	O
in	O
the	O
film	O
it	O
seems	O
almost	O
impossible	O
for	O
a	O
game	O
to	O
do	O
it	O
justice	O
.	O
</s>
<s>
The	O
introduction	O
sequence	O
was	O
praised	O
by	O
some	O
reviewers	O
,	O
although	O
Robert	O
Swan	O
of	O
Computer	O
and	O
Video	O
Games	O
(	O
CVG	O
)	O
,	O
reviewing	O
the	O
Atari	B-Device
ST	I-Device
version	O
,	O
stated	O
that	O
the	O
sequence	O
was	O
a	O
nice	O
idea	O
that	O
was	O
poorly	O
executed	O
,	O
writing	O
that	O
the	O
DeLorean	O
"	O
jerks	O
along	O
like	O
a	O
slug	O
with	O
bunions	O
"	O
.	O
</s>
<s>
Chris	O
Jenkins	O
of	O
Sinclair	O
User	O
reviewed	O
the	O
ZX	B-Operating_System
Spectrum	I-Operating_System
version	O
and	O
considered	O
the	O
sequence	O
to	O
be	O
"	O
astonishingly	O
badly-drawn	O
"	O
.	O
</s>
<s>
Patterson	O
believed	O
that	O
the	O
beat	B-Application
'	I-Application
em	I-Application
up	I-Application
level	O
was	O
poorly	O
executed	O
and	O
the	O
worst	O
of	O
the	O
five	O
levels	O
.	O
</s>
<s>
Amiga	B-Device
Action	B-Application
criticized	O
the	O
music	O
and	O
the	O
"	O
weak	O
"	O
background	O
details	O
.	O
</s>
<s>
Zzap	O
!	O
64	O
considered	O
the	O
levels	O
to	O
be	O
slightly	O
better	O
on	O
the	O
Amiga	B-Device
version	O
over	O
the	O
Commodore	O
64	O
version	O
.	O
</s>
<s>
Mark	O
Caswell	O
of	O
The	O
Games	O
Machine	O
reviewed	O
the	O
Atari	B-Device
ST	I-Device
version	O
and	O
considered	O
it	O
a	O
disappointing	O
game	O
,	O
criticizing	O
its	O
slow	O
pace	O
.	O
</s>
<s>
Atari	B-Device
ST	I-Device
User	O
opined	O
that	O
the	O
game	O
closely	O
follows	O
the	O
film	O
but	O
considered	O
it	O
as	O
average	O
movie	O
tie-in	O
.	O
</s>
<s>
Neil	O
Jackson	O
of	O
ST	O
Format	O
called	O
it	O
a	O
"	O
colourful	O
and	O
somewhat	O
schizophrenic	B-Application
game	O
"	O
with	O
an	O
"	O
interesting	O
"	O
combination	O
of	O
gameplay	O
styles	O
and	O
"	O
superb	O
"	O
graphics	O
.	O
</s>
<s>
However	O
,	O
Jackson	O
criticized	O
the	O
first	O
level	O
as	O
being	O
"	O
incredibly	O
tough	O
"	O
due	O
to	O
poor	O
collision	O
detection	O
and	O
joystick	O
control	O
,	O
although	O
he	O
praised	O
the	O
puzzle	O
levels	O
for	O
providing	O
"	O
well-needed	O
breathing	O
space	O
"	O
between	O
the	O
action	B-Application
levels	O
.	O
</s>
<s>
Rich	O
Pelley	O
of	O
Your	O
Sinclair	O
reviewed	O
the	O
ZX	B-Operating_System
Spectrum	I-Operating_System
version	O
and	O
was	O
critical	O
of	O
the	O
game	O
's	O
long	O
loading	O
times	O
,	O
but	O
praised	O
the	O
variety	O
and	O
the	O
puzzle	O
levels	O
,	O
and	O
considered	O
the	O
game	O
to	O
be	O
addictive	O
and	O
very	O
faithful	O
to	O
the	O
film	O
.	O
</s>
