<s>
Released	O
exclusively	O
in	O
Japan	O
on	O
November	O
3	O
,	O
2000	O
,	O
the	O
first	O
game	O
in	O
the	O
series	O
was	O
released	O
for	O
the	O
Game	B-Device
Boy	I-Device
Color	I-Device
in	O
two	O
versions	O
:	O
and	O
.	O
</s>
<s>
On	O
April	O
26	O
,	O
2002	O
,	O
a	O
sequel	B-Language
for	O
the	O
Game	B-Device
Boy	I-Device
Advance	I-Device
called	O
was	O
released	O
exclusively	O
in	O
Japan	O
.	O
</s>
<s>
Keitai	B-Application
Denjū	I-Application
Telefang	I-Application
and	O
Keitai	B-Application
Denjū	I-Application
Telefang	I-Application
2	I-Application
revolve	O
around	O
collecting	O
the	O
phone	O
numbers	O
of	O
various	O
creatures	O
,	O
referred	O
to	O
as	O
,	O
on	O
a	O
device	O
called	O
,	O
that	O
the	O
player	O
,	O
classified	O
as	O
a	O
,	O
encounters	O
and	O
must	O
defeat	O
.	O
</s>
<s>
The	O
games	O
are	O
played	O
from	O
a	O
third-person	O
,	O
top-down	O
perspective	O
,	O
with	O
the	O
player	O
taking	O
the	O
role	O
of	O
the	O
games	O
 '	O
young	O
protagonist	O
and	O
main	O
T-Fanger	O
:	O
Shigeki	O
in	O
Keitai	B-Application
Denjū	I-Application
Telefang	I-Application
and	O
Kyō	O
in	O
Keitai	B-Application
Denjū	I-Application
Telefang	I-Application
2	I-Application
.	O
</s>
<s>
However	O
,	O
this	O
was	O
slightly	O
changed	O
in	O
Keitai	B-Application
Denjū	I-Application
Telefang	I-Application
2	I-Application
,	O
where	O
Denjū'''s	O
habitat	O
types	O
are	O
defensive	O
,	O
and	O
attacks	O
are	O
of	O
separate	O
offensive	O
types	O
:	O
Normal	O
,	O
Flame	O
,	O
Thunder	O
,	O
Water	O
,	O
Wind	O
,	O
Rock	O
and	O
Machine	O
.	O
</s>
<s>
Losing	O
causes	O
a	O
game	B-Application
over	I-Application
and	O
the	O
player	O
is	O
then	O
returned	O
to	O
the	O
title	O
screen	O
of	O
the	O
games	O
.	O
</s>
<s>
In	O
Keitai	B-Application
Denjū	I-Application
Telefang	I-Application
,	O
evolution	O
is	O
permanent	O
but	O
in	O
Keitai	B-Application
Denjū	I-Application
Telefang	I-Application
2	I-Application
,	O
evolution	O
can	O
be	O
reversed	O
if	O
it	O
was	O
not	O
achieved	O
through	O
"	O
Natural	O
evolution	O
"	O
.	O
</s>
<s>
In	O
Keitai	B-Application
Denjū	I-Application
Telefang	I-Application
2	I-Application
,	O
instead	O
of	O
having	O
to	O
wait	O
for	O
a	O
Denma	O
attack	O
to	O
charge	O
,	O
its	O
use	O
is	O
limited	O
by	O
a	O
DP	O
meter	O
.	O
</s>
<s>
The	O
use	O
of	O
items	O
varies	O
greatly	O
between	O
Keitai	B-Application
Denjū	I-Application
Telefang	I-Application
and	O
Keitai	B-Application
Denjū	I-Application
Telefang	I-Application
2	I-Application
.	O
</s>
<s>
In	O
Keitai	B-Application
Denjū	I-Application
Telefang	I-Application
,	O
items	O
are	O
only	O
used	O
for	O
evolving	O
Denjū	O
or	O
gifts	O
,	O
excluding	O
some	O
items	O
that	O
are	O
important	O
to	O
the	O
storyline	O
such	O
as	O
keys	O
to	O
unlock	O
doors	O
or	O
a	O
plush	O
Denjū	O
toy	O
that	O
has	O
been	O
stolen	O
.	O
</s>
<s>
Such	O
items	O
range	O
from	O
simple	O
objects	O
like	O
pencils	B-Device
and	O
batteries	O
to	O
flamethrowers	O
,	O
computers	B-Device
,	O
cranes	O
and	O
shuriken	O
.	O
</s>
<s>
In	O
Keitai	B-Application
Denjū	I-Application
Telefang	I-Application
2	I-Application
,	O
evolution	O
items	O
are	O
of	O
the	O
same	O
type	O
as	O
Denjū	O
(	O
Mountain	O
,	O
Sky	O
,	O
Forest	O
,	O
Aquatic	O
,	O
Desert	O
or	O
Grassland	O
)	O
and	O
any	O
such	O
item	O
can	O
be	O
used	O
to	O
evolve	O
a	O
Denjū	O
of	O
the	O
same	O
type	O
.	O
</s>
<s>
Keitai	B-Application
Denjū	I-Application
Telefang	I-Application
2	I-Application
also	O
introduced	O
items	O
which	O
can	O
heal	O
a	O
Denjūs	O
HP	O
and/or	O
DP	O
as	O
well	O
as	O
cure	O
status	O
effects	O
such	O
as	O
paralysis	O
.	O
</s>
<s>
A	O
10-year-old	O
boy	O
named	O
Shigeki	O
finds	O
one	O
of	O
these	O
phones	O
and	O
is	O
accidentally	O
transported	O
with	O
another	O
boy	O
,	O
Matsukiyo	O
,	O
to	O
another	O
world	O
when	O
he	O
loses	O
a	O
baseball	B-Application
near	O
an	O
"	O
antenna	O
tree	O
"	O
.	O
</s>
<s>
These	O
phone	O
battles	O
are	O
also	O
known	O
as	O
Telefang	B-Application
.	O
</s>
<s>
-	O
The	O
protagonist	O
and	O
main	O
T-Fanger	O
of	O
Keitai	B-Application
Denjū	I-Application
Telefang	I-Application
.	O
</s>
<s>
He	O
is	O
an	O
average	O
10-year-old	O
boy	O
who	O
loves	O
baseball	B-Application
.	O
</s>
<s>
He	O
reappears	O
in	O
Keitai	B-Application
Denjū	I-Application
Telefang	I-Application
2	I-Application
.	O
</s>
<s>
-	O
The	O
protagonist	O
and	O
main	O
T-Fanger	O
of	O
Keitai	B-Application
Denjū	I-Application
Telefang	I-Application
2	I-Application
.	O
</s>
<s>
-	O
The	O
child	O
prodigy	O
who	O
entered	O
the	O
Denjū	O
world	O
along	O
with	O
Shigeki	O
in	O
Keitai	B-Application
Denjū	I-Application
Telefang	I-Application
is	O
now	O
a	O
professor	O
living	O
in	O
the	O
human	O
world	O
,	O
where	O
he	O
runs	O
a	O
laboratory	O
and	O
pays	O
Kyō	O
for	O
collecting	O
information	O
on	O
certain	O
Denjū	O
.	O
</s>
<s>
A	O
manga	O
was	O
also	O
serialized	O
by	O
Kodansha	O
for	O
Keitai	B-Application
Denjū	I-Application
Telefang	I-Application
2	I-Application
;	O
however	O
,	O
it	O
was	O
featured	O
only	O
in	O
the	O
Comic	O
BonBon	O
magazine	O
and	O
was	O
never	O
reprinted	O
.	O
</s>
<s>
The	O
first	O
two	O
Keitai	B-Application
Denjū	I-Application
Telefang	I-Application
games	O
received	O
an	O
unofficial	O
English	O
translation	O
.	O
</s>
<s>
The	O
original	O
games	O
were	O
not	O
related	O
to	O
Nintendo	O
's	O
Pokémon	O
series	O
,	O
but	O
the	O
translations	O
were	O
marketed	O
as	O
Pokémon	O
Diamond	O
and	O
Pokémon	B-Application
Jade	I-Application
.	O
</s>
<s>
The	O
creatures	O
used	O
for	O
the	O
cover	O
arts	O
are	O
neither	O
Denjuu	O
nor	O
Pokémon	O
;	O
the	O
box	O
for	O
Pokémon	B-Application
Jade	I-Application
depicts	O
a	O
modified	O
design	O
of	O
the	O
forest	O
spirit	O
from	O
Princess	O
Mononoke	O
,	O
while	O
the	O
box	O
for	O
Pokémon	O
Diamond	O
depicts	O
a	O
blue	O
snake-like	O
creature	O
of	O
unknown	O
origin	O
.	O
</s>
<s>
The	O
translations	O
are	O
notorious	O
for	O
their	O
poorly	O
translated	O
English	O
text	O
as	O
well	O
as	O
serious	O
programming	B-Error_Name
errors	I-Error_Name
that	O
can	O
cause	O
the	O
game	O
to	O
crash	B-General_Concept
.	O
</s>
