<s>
Montezuma	B-Application
's	I-Application
Revenge	I-Application
is	O
a	O
1984	O
platform	O
game	O
for	O
Atari	B-Device
8-bit	I-Device
family	I-Device
,	O
Atari	B-General_Concept
2600	I-General_Concept
,	O
Atari	B-General_Concept
5200	I-General_Concept
,	O
Apple	B-Device
II	I-Device
,	O
ColecoVision	B-Device
,	O
Commodore	O
64	O
,	O
IBM	B-Device
PC	I-Device
(	O
as	O
a	O
self-booting	O
disk	O
)	O
,	O
and	O
ZX	B-Operating_System
Spectrum	I-Operating_System
(	O
as	O
Panama	B-Application
Joe	I-Application
)	O
.	O
</s>
<s>
Montezuma	B-Application
's	I-Application
Revenge	I-Application
is	O
an	O
early	O
example	O
of	O
the	O
Metroidvania	O
genre	O
.	O
</s>
<s>
The	O
player	O
controls	O
a	O
character	O
called	O
Panama	B-Application
Joe	I-Application
(	O
a.k.a.	O
</s>
<s>
Pedro	O
)	O
,	O
moving	O
him	O
from	O
room	O
to	O
room	O
in	O
the	O
labyrinthine	O
underground	O
pyramid	O
of	O
the	O
16th	O
century	O
Aztec	B-Application
temple	O
of	O
emperor	O
Montezuma	O
II	O
,	O
filled	O
with	O
enemies	O
,	O
obstacles	O
,	O
traps	O
,	O
and	O
dangers	O
.	O
</s>
<s>
Panama	B-Application
Joe	I-Application
must	O
find	O
keys	O
to	O
open	O
doors	O
,	O
collect	O
and	O
use	O
equipment	O
such	O
as	O
torches	O
,	O
swords	O
,	O
amulets	O
,	O
etc.	O
,	O
and	O
avoid	O
or	O
defeat	O
the	O
challenges	O
in	O
his	O
path	O
.	O
</s>
<s>
Robert	O
Jaeger	O
had	O
previously	O
written	O
Chomper	O
(	O
a	O
Pac-Man	B-Application
clone	O
)	O
and	O
Pinhead	O
(	O
a	O
Kick	B-Application
Man	I-Application
clone	O
)	O
.	O
</s>
<s>
In	O
1983	O
,	O
Jaeger	O
's	O
friend	O
Mark	O
Sunshine	O
suggested	O
Jaeger	O
make	O
a	O
game	O
with	O
a	O
Meso-American	O
theme	O
and	O
call	O
it	O
Montezuma	B-Application
's	I-Application
Revenge	I-Application
.	O
</s>
<s>
The	O
original	O
game	O
that	O
Jaeger	O
developed	O
for	O
the	O
Atari	B-Device
800	I-Device
required	O
48K	O
of	O
memory	O
.	O
</s>
<s>
Parker	O
Brothers	O
released	O
versions	O
for	O
the	O
ColecoVision	B-Device
,	O
Atari	B-General_Concept
2600	I-General_Concept
,	O
and	O
Atari	B-General_Concept
5200	I-General_Concept
consoles	O
,	O
and	O
for	O
the	O
Apple	B-Device
II	I-Device
,	O
Commodore	O
64	O
,	O
IBM	B-Device
PC	I-Device
,	O
and	O
Atari	B-Device
8-bit	I-Device
computers	I-Device
.	O
</s>
<s>
To	O
reduce	O
costs	O
,	O
Parker	O
Brothers	O
released	O
the	O
Commodore	O
64	O
and	O
Atari	B-Device
8-bit	I-Device
versions	O
on	O
disk	O
instead	O
of	O
cartridge	O
.	O
</s>
<s>
The	O
C64	O
and	O
Atari	O
versions	O
came	O
on	O
a	O
single	O
flippy	O
disk	O
–	O
likewise	O
for	O
the	O
IBM	B-Device
PC	I-Device
and	O
Apple	B-Device
II	I-Device
versions	O
.	O
</s>
<s>
The	O
IBM	B-Device
PC	I-Device
port	O
uses	O
a	O
CPU-based	O
speed	O
loop	O
and	O
is	O
too	O
fast	O
to	O
be	O
playable	O
on	O
286	O
and	O
up	O
machines	O
.	O
</s>
<s>
A	O
cassette	O
tape	O
version	O
was	O
developed	O
separately	O
in	O
the	O
UK	O
for	O
the	O
Sinclair	B-Operating_System
Spectrum	I-Operating_System
.	O
</s>
<s>
The	O
Atari	B-General_Concept
2600	I-General_Concept
cartridge	O
is	O
8K	O
and	O
has	O
half	O
the	O
levels	O
of	O
the	O
other	O
versions	O
.	O
</s>
<s>
Computer	O
and	O
Video	O
Games	O
rated	O
the	O
ColecoVision	B-Device
version	O
87%	O
in	O
1989	O
.	O
</s>
<s>
In	O
1998	O
a	O
3D	O
first-person	O
game	O
was	O
developed	O
for	O
Microsoft	B-Application
Windows	I-Application
by	O
Utopia	O
Technologies	O
called	O
Montezuma	B-Application
's	I-Application
Return	I-Application
!	I-Application
</s>
<s>
A	O
2D	O
version	O
for	O
the	O
Game	B-Device
Boy	I-Device
and	O
Game	B-Device
Boy	I-Device
Color	I-Device
was	O
developed	O
by	O
Tarantula	O
Studios	O
.	O
</s>
<s>
An	O
enhanced	O
version	O
of	O
Montezuma	B-Application
's	I-Application
Revenge	I-Application
was	O
released	O
for	O
iOS	B-Application
and	O
Android	B-Application
.	O
</s>
<s>
Atari	B-General_Concept
2600	I-General_Concept
games	O
were	O
used	O
as	O
challenges	O
for	O
Artificial	B-Application
intelligence	I-Application
researchers	O
.	O
</s>
<s>
In	O
2013	O
,	O
progress	O
was	O
made	O
on	O
general	O
algorithms	O
which	O
could	O
learn	O
to	O
play	O
multiple	O
games	O
,	O
but	O
they	O
failed	O
on	O
Montezuma	B-Application
's	I-Application
Revenge	I-Application
and	O
Pitfall	B-Application
!	I-Application
.	O
</s>
<s>
In	O
2018	O
,	O
researchers	O
from	O
OpenAI	O
made	O
progress	O
on	O
Montezuma	B-Application
's	I-Application
Revenge	I-Application
.	O
</s>
<s>
Later	O
in	O
the	O
year	O
Uber	B-Application
developed	O
Go-Explore	O
,	O
a	O
new	O
approach	O
to	O
reinforcement	O
learning	O
,	O
which	O
could	O
easily	O
handle	O
both	O
of	O
these	O
games	O
.	O
</s>
