View source for Dual-slot mode

'''Dual-slot mode''' (Japanese: '''ダブルスロット''' ''Double-Slot'') is a method of communication between a [[Nintendo DS]] game card and a [[Game Boy Advance]] game cartridge by inserting both into the same Nintendo DS system. However, due to the removal of the GBA slot, dual-slot mode is not available if the player is using a system from the [[Nintendo DSi]] family or [[Nintendo 3DS]] family.

==In the core series games==
===Pal Park===
{{main|Pal Park}}
In {{game5|Diamond|Pearl|Platinum|HeartGold|SoulSilver}}, Pal Park allows the player to transfer Pokémon from {{game5|Ruby|Sapphire|Emerald|FireRed|LeafGreen}}, using dual-slot mode for communication. The Pokémon are sent from the [[Generation III]] game to the [[Generation IV]] game and cannot be sent back.

Both games must be the same language in order to migrate Pokémon via Pal Park, unless the Generation IV game is Korean, in which case Japanese or English language Generation III games can be used.

===Dongle method===
In {{game2|Diamond|Pearl|Platinum}}, the dongle method changes the [[wild Pokémon]] that appear based on the game in the Game Boy Advance slot, via dual-slot mode. This method is compatible with any of the [[Generation III]] [[core series]] games: {{game5|Ruby|Sapphire|Emerald|FireRed|LeafGreen}}. The name "dongle method" is an unofficial name that comes from the fact that this method uses the Game Boy Advance game as a {{wp|dongle}} for the Nintendo DS game.

After obtaining the [[National Pokédex]], if the player had an applicable GBA game inserted in the GBA slot when they opened the title screen, the dongle method allows specific wild Pokémon to appear depending on the GBA game. Wild encounters will not change if a GBA game is inserted or removed from the Nintendo DS system after the title screen. The dongle method works regardless of the language of the GBA game (unlike with Pal Park).

The wild Pokémon that can appear this way are mostly not in the [[List of Pokémon by Sinnoh Pokédex number|Sinnoh Pokédex]] in Pokémon Diamond and Pearl. They are usually [[version-exclusive Pokémon]] to one of the [[Generation III]] games. They usually have an 8% chance of appearing, or 4% each if there are two different Pokémon that can appear this way in the same location due to the same game.

====List of Pokémon available using the dongle method====
{| class="roundy" style="margin:auto; background: #ccf; border: 5px solid #ddf"
! colspan="6" style="background:#bbbbe8; {{roundytop|5px}}" | Game in the GBA Slot
|-
! colspan="2" style="background:#bbbbe8; {{roundybl|5px}}" | Pokémon
! style="background:#bbbbe8" | Location
! colspan="3" style="background:#bbbbe8; {{roundybr|5px}}" | Game
|-
! colspan="6" style="background:#{{ruby color light}}; {{roundytop|5px}}" | {{color2|{{ruby color dark}}|Pokémon Ruby and Sapphire Versions|Ruby}}
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|273|Seedot}}
| style="text-align:center" | {{p|Seedot}}
| [[Route]]s {{rtn|203|Sinnoh}}, {{rtn|204|Sinnoh}} and {{rtn|210|Sinnoh}} (South), [[Eterna Forest]]
! style="background:#{{diamond color}}" width=20 | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" width=20 | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" width=20 | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|274|Nuzleaf}}
| style="text-align:center" | {{p|Nuzleaf}}
| [[Route]]s {{rtn|210|Sinnoh}} (South) and {{rtn|229|Sinnoh}}
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|303|Mawile}}
| style="text-align:center" | {{p|Mawile}}
| [[Iron Island]]
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|335|Zangoose}}
| style="text-align:center" | {{p|Zangoose}}
| [[Route]]s {{rtn|208|Sinnoh}} and {{rtn|210|Sinnoh}} (North)
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|-
| style="text-align:center; background:#fff; {{roundybl|5px}}" | {{MSP/3|338|Solrock}}
| style="text-align:center; background:#fff" | {{p|Solrock}}
| style="background:#fff" | [[Lake Verity]], [[Lake Acuity]], [[Lake Valor]], [[Mt. Coronet]], [[Sendoff Spring]], [[Turnback Cave]]
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}; {{roundybr|5px}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|-
|
|-
! colspan="6" style="background:#{{sapphire color light}}; {{roundytop|5px}}" | {{color2|{{sapphire color dark}}|Pokémon Ruby and Sapphire Versions|Sapphire}}
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|270|Lotad}}
| style="text-align:center" | {{p|Lotad}}
| [[Route]]s {{rtn|203|Sinnoh}}, {{rtn|204|Sinnoh}}, {{rtn|205|Sinnoh}} (North), and {{rtn|212|Sinnoh}} (South)
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|271|Lombre}}
| style="text-align:center" | {{p|Lombre}}
| [[Route]]s {{rtn|212|Sinnoh}} (South) and {{rtn|229|Sinnoh}}
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|302|Sableye}}
| style="text-align:center" | {{p|Sableye}}
| [[Iron Island]]
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|336|Seviper}}
| style="text-align:center" | {{p|Seviper}}
| [[Route]]s {{rtn|208|Sinnoh}} and {{rtn|210|Sinnoh}} (North)
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|-
| style="text-align:center; background:#fff; {{roundybl|5px}}" | {{MSP/3|337|Lunatone}}
| style="text-align:center; background:#fff" | {{p|Lunatone}}
| style="background:#fff" | [[Lake Verity]], [[Lake Acuity]], [[Lake Valor]], [[Mt. Coronet]], [[Sendoff Spring]], [[Turnback Cave]]
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}; {{roundybr|5px}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|-
|
|-
! colspan="6" style="background:#{{firered color light}}; {{roundytop|5px}}" | {{color2|{{firered color dark}}|Pokémon FireRed and LeafGreen Versions|FireRed}}
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|010|Caterpie}}
| style="text-align:center" | {{p|Caterpie}}
| {{rt|204|Sinnoh}}{{sup/4|Pt}} (South){{sup/4|DP}}, [[Eterna Forest]]{{sup/4|Pt}}
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|011|Metapod}}
| style="text-align:center" | {{p|Metapod}}
| [[Eterna Forest]]
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|023|Ekans}}
| style="text-align:center" | {{p|Ekans}}
| {{rt|212|Sinnoh}} (South)
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|024|Arbok}}
| style="text-align:center" | {{p|Arbok}}
| [[Great Marsh]]
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|058|Growlithe}}
| style="text-align:center" | {{p|Growlithe}}
| [[Route]]s {{rtn|201|Sinnoh}} and {{rtn|202|Sinnoh}}
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|-
| style="text-align:center; background:#fff; {{roundybl|5px}}" | {{MSP/3|239|Elekid}}
| style="text-align:center; background:#fff" | {{p|Elekid}}
| style="background:#fff" | {{rt|205|Sinnoh}}, [[Valley Windworks]]
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#FFF; background:#fff; {{roundybr|5px}}" | [[Pokémon Platinum Version|{{color|{{platinum color}}|Pt}}]]
|-
|
|-
! colspan="6" style="background:#{{leafgreen color light}}; {{roundytop|5px}}" | {{color2|{{leafgreen color dark}}|Pokémon FireRed and LeafGreen Versions|LeafGreen}}
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|013|Weedle}}
| style="text-align:center" | {{p|Weedle}}
| | {{rt|204|Sinnoh}}{{sup/4|Pt}} (South){{sup/4|DP}}, [[Eterna Forest]]{{sup/4|Pt}}
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|014|Kakuna}}
| style="text-align:center" | {{p|Kakuna}}
| [[Eterna Forest]]
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|027|Sandshrew}}
| style="text-align:center" | {{p|Sandshrew}}
| [[Wayward Cave]]
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|028|Sandslash}}
| style="text-align:center" | {{p|Sandslash}}
| {{rt|228|Sinnoh}}
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|037|Vulpix}}
| style="text-align:center" | {{p|Vulpix}}
| [[Route]]s {{rtn|209|Sinnoh}} and {{rtn|214|Sinnoh}}
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|-
| style="text-align:center; background:#fff; {{roundybl|5px}}" | {{MSP/3|240|Magby}}
| style="text-align:center; background:#fff" | {{p|Magby}}
| style="background:#fff" | {{rt|227|Sinnoh}}, [[Stark Mountain]]
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#FFF; {{roundybr|5px}}" | [[Pokémon Platinum Version|{{color|{{platinum color}}|Pt}}]]
|-
|
|-
! colspan="6" style="background:#{{emerald color light}}; {{roundytop|5px}}" | {{color2|{{emerald color dark}}|Pokémon Emerald Version|Emerald}}
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|216|Teddiursa}}
| style="text-align:center" | {{p|Teddiursa}}
| {{rt|211|Sinnoh}}{{sup/4|DP}} (West){{sup/4|Pt}}, [[Acuity Lakefront]]{{sup/4|DP}}, [[Lake Acuity]]{{sup/4|Pt}}
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|217|Ursaring}}
| style="text-align:center" | {{p|Ursaring}}
| [[Route]]s {{rtn|216|Sinnoh}} and {{rtn|217|Sinnoh}}, [[Acuity Lakefront]]{{sup/4|Pt}}, [[Lake Acuity]]{{sup/4|DP}}
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|204|Pineco}}
| style="text-align:center" | {{p|Pineco}}
| [[Eterna Forest]], [[Route]]s {{rtn|203|Sinnoh}}, {{rtn|204|Sinnoh}}, {{rtn|210|Sinnoh}} (South) and {{rtn|229|Sinnoh}}
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|207|Gligar}}
| style="text-align:center" | {{p|Gligar}}
| [[Stark Mountain]], [[Route]]s {{rtn|206|Sinnoh}}, {{rtn|207|Sinnoh}}, {{rtn|214|Sinnoh}}, {{rtn|215|Sinnoh}}, and {{rtn|227|Sinnoh}}
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#FFF" | [[Pokémon Platinum Version|{{color|{{platinum color}}|Pt}}]]
|-
| style="text-align:center; background:#fff; {{roundybl|5px}}" | {{MSP/3|213|Shuckle}}
| style="text-align:center; background:#fff" | {{p|Shuckle}}
| style="background:#fff" | {{rt|224|Sinnoh}}
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}; {{roundybr|5px}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|-
|
|-
! colspan="6" style="background:#{{hoenn color light}}; {{roundytop|5px}}" | {{color2|{{hoenn color dark}}|Generation III|Multiple Generation III games}}
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|093|Haunter}}
| style="text-align:center" | {{p|Haunter}}
| [[Old Chateau]]{{sup/3|FRLG}}{{sup/3|RSE}}
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#fff" | [[Pokémon Platinum Version|{{color|{{platinum color}}|Pt}}]]
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|094|Gengar}}
| style="text-align:center" | {{p|Gengar}}
| [[Old Chateau]]{{sup/3|FRLG}}{{sup/3|RSE}}
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#{{platinum color}}" | [[Pokémon Platinum Version|{{color|000|Pt}}]]
|- style="background:#fff"
| style="text-align:center" | {{MSP/3|397|Staravia}}
| style="text-align:center" | {{p|Staravia}}
| [[Lake Verity]]{{sup/3|FRLG}}{{sup/3|E}}
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#FFF" | [[Pokémon Platinum Version|{{color|{{platinum color}}|Pt}}]]
|-
| style="text-align:center; background:#fff; {{roundybl|5px}}" | {{MSP/3|400|Bibarel}}
| style="text-align:center; background:#fff" | {{p|Bibarel}}
| style="background:#fff" | [[Lake Verity]]{{sup/3|FRLG}}{{sup/3|E}}
! style="background:#{{diamond color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|D}}]]
! style="background:#{{pearl color}}" | [[Pokémon Diamond and Pearl Versions|{{color|000|P}}]]
! style="background:#fff; {{roundybr|5px}}" | [[Pokémon Platinum Version|{{color|{{platinum color}}|Pt}}]]
|}

===Accessories and Backdrops===
In {{game5|Diamond|Pearl|Platinum|HeartGold|SoulSilver}}, the player can obtain one unique [[Backdrop]] or [[Accessory]] for each Generation III core series game from a {{tc|Lady}} in the Pal Park lobby, based on the game the player has inserted in the GBA slot. The lady describes the item as a gift for the player as a reward for their performance in a Catching Show (regardless of whether the player has ever actually participated in one).

Each gift may only be received once, and the player must leave and re-enter the Pal Park building to receive a new gift, even if the game is reset. The language of the GBA game is ignored, meaning that the player can receive a gift even if they would not be able to migrate Pokémon from it.

{{Itlisth}}
{{Itemlist|None|sprite=Accessory Crown Sprite|Given by a Lady in the Pal Park lobby if [[Pokémon FireRed and LeafGreen Versions|Pokémon FireRed]] is in the GBA slot|D=yes|P=yes|Pt=yes|HG=yes|SS=yes|display={{DL|Accessory|Special|Crown}}}}
{{Itemlist|None|sprite=Accessory Tiara Sprite|Given by a Lady in the Pal Park lobby if [[Pokémon FireRed and LeafGreen Versions|Pokémon LeafGreen]] is in the GBA slot|D=yes|P=yes|Pt=yes|HG=yes|SS=yes|display={{DL|Accessory|Special|Tiara}}}}
{{Itemlist|Fashion Case|Given by a Lady in the Pal Park lobby if [[Pokémon Ruby and Sapphire Versions|Pokémon Ruby]] is in the GBA slot|D=yes|P=yes|Pt=yes|HG=yes|SS=yes|display={{DL|Backdrop|Underground}}}}
{{Itemlist|Fashion Case|Given by a Lady in the Pal Park lobby if [[Pokémon Ruby and Sapphire Versions|Pokémon Sapphire]] is in the GBA slot|D=yes|P=yes|Pt=yes|HG=yes|SS=yes|display={{DL|Backdrop|Seafloor}}}}
{{Itemlist|Fashion Case|Given by a Lady in the Pal Park lobby if {{game|Emerald}} is in the GBA slot|D=yes|P=yes|Pt=yes|HG=yes|SS=yes|display={{DL|Backdrop|Sky}}}}
{{Itlistfoot}}

===Event distributions===
[[File:Distribution cartridge Slot 2.jpg|thumb|{{DL|List of local Japanese event Pokémon distributions (Generation IV)|10th Movie Deoxys}} distribution Slot 2 cartridge]]
In the Generation IV core series games, some event distributions were done using a Slot 2 cartridge, which was inserted into the GBA slot to send data to the DS game card.
{{-}}

==In spin-off games==
===Pokémon Dash===
[[File:Dual-slot mode Dash JP.png|thumb|left|200px|Japanese/Korean version cup display]]
[[File:Dual-slot mode Dash ENG.png|thumb|right|200px|American/European version cup display]]
In [[Pokémon Dash]], players can make custom cups based on the [[party]] in a Generation III [[core series]] game inserted in the GBA slot. {{game|FireRed and LeafGreen|s}} sprites are used (except for Speed Forme Deoxys, which uses its {{game|Emerald}} sprite as it did not exist in FireRed and LeafGreen). {{p|Deoxys}} and {{p|Unown}} forms and {{p|Spinda}} patterns are retained, but {{Shiny}} coloration is not depicted. {{pkmn|Egg}}s in the player's party are ignored.

The Japanese, European, and American versions of Pokémon Dash have no region checks, allowing the player use any language game (although only the first 5 characters of a Pokémon's name will be displayed in the Japanese version of Pokémon Dash). The Korean version only allows Japanese game cartridges to be used.
{{-}}

===Pokémon Mystery Dungeon: Red Rescue Team and Blue Rescue Team===
{{incomplete|section}}
In [[Pokémon Mystery Dungeon: Red Rescue Team and Blue Rescue Team|Pokémon Mystery Dungeon: Blue Rescue Team]], dual-slot mode allows the game to communicate with [[Pokémon Mystery Dungeon: Red Rescue Team and Blue Rescue Team|Pokémon Mystery Dungeon: Red Rescue Team]]. 

If the player has both games inserted into a compatible system, [[SOS Mail]] can be sent between the games, allowing for the rescue team in one game to save the team in the other cartridge's save file.

In Pokémon Mystery Dungeon: Blue Rescue Team, the player can use Receive Team while Red Rescue Team is in the Game Boy Advance slot. If used, the rescue team from Red Rescue Team becomes the boss of the Rescue Team Maze of [[Makuhita Dojo]]. The rescue team can be recruited into Blue Rescue Team using species recruitment rates (although some Pokémon such as the [[legendary birds]] cannot be recruited this way, potentially to avoid having duplicate Legendaries in [[Friend Areas]] with more than one slot).

==Trivia==
* If a [[Pokémon FireRed and LeafGreen Versions|Pokémon FireRed or LeafGreen]] cartridge is present in Slot 2 of the [[Nintendo DS]], the migration option in the main menu of {{2v2|Diamond|Pearl}} is incorrectly formatted as "Migrate from Fire Red" or "Migrate from Leaf Green", with a space in the middle of the version name. This typo was fixed in {{game|Platinum}}, {{2v2|HeartGold|SoulSilver}}.
* All evolutionary families that are exclusively encountered via the dongle method in Pokémon Diamond and Pearl, except {{p|Pineco}} and {{p|Shuckle}}, are [[version-exclusive Pokémon]] in [[Pokémon Brilliant Diamond and Shining Pearl]]. These are the only new non-{{pkmn2|Legendary}} version-exclusive Pokémon in these games.
** Pokémon that required {{g|Ruby}} or {{g|FireRed}} are exclusive to {{g|Brilliant Diamond}}; Pokémon that required {{g|Sapphire}} or {{g|LeafGreen}} are exclusive to {{g|Shining Pearl}}; and the two Pokémon that required {{g|Emerald}} were split, with {{p|Gligar}} being exclusive to Brilliant Diamond and {{p|Teddiursa}} being exclusive to Shining Pearl.
* All four of the Pokémon that are available through multiple Generation III games via the dongle method [[underleveled Pokémon|appear at a lower level than they can usually be obtained]].
* [[Pokémon Dream Radar]] has a similar feature to the dongle method, which allows players to catch a Generation IV [[game mascot]] with its [[Hidden Ability]] in extensions unlocked by putting the Game Card of the corresponding game into the game card slot of the Nintendo 3DS system.

==In other languages==
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|de=Dual Slot-Pokémon
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==See also==
* [[Mass outbreak]]
* [[Memory Link]]
* [[Save data bonus]]

{{Inter-gen transfer|Gen IV}}
{{Communication}}<br>
{{Project Games notice|game mechanic}}

[[Category:Pokémon Diamond and Pearl]]
[[Category:Pokémon Platinum]]
[[Category:Pokémon HeartGold and SoulSilver]]

[[de:Dual Slot-Pokémon]]
[[es:Lista de Pokémon que se obtienen insertando un videojuego de GBA]]
[[fr:Fonction double port]]
[[it:Modalità dual-slot]]
[[ja:ダブルスロット]]
[[zh:双插槽模式]]