Pokemon Diamond & Pearl
Pokemon Diamond & Pearl
Videos
Pokemon's Creation & Game Freak - Did You Know Gaming? Feat. Tamashii Hiroka
Pokemon & Religion - Did You Know Gaming? Feat. Jimmy Whetzel
Pokemon & Science - Did You Know Gaming? Feat. JonTron
Pokemon Part 3 - Did You Know Gaming? Feat. Egoraptor
 
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Lopunny is based on the Playboy Bunny caricature or similar "bunny girls" seen in popular culture. The bunny girl style is a popular appearance in much of Japanese adult media.
Contributed by PowerRing
Pokémon Diamond and Pearl contain many references to Internet memes and chatspeak. This is possibly because the lead translator, Nob Ogasawara, is a member of the Something Awful Forums.
Contributed by xaxdxaxmx
On the back cover of the Australian version of Pokémon Diamond, it states:

"...as you search for the Pokémon that rules space in Pokémon Diamond Version."

This is an error, as the legendary Pokémon of Pokémon Diamond is Dialga, who has the power to control time. This mistake is not present on the box art of other regions.
Contributed by xaxdxaxmx
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In the Canalave Library, the story "Sinnoh Folk Story 3"³ differs between the Western and Japanese releases of the game. The Western version tells about how Pokémon and humans were once very close and treated each other as equals. The Japanese version however tells about how Pokémon and humans used to marry each other which was considered normal because they once appeared similar.
Contributed by KnowledgeBase
When the total play time counter reaches 999:00, it skips over to 999:59 as a result of a glitch, thereby skipping nearly an entire hour in the counter.
Contributed by game4brains
On the Meister's Island, if the player trades away Finneon the player would be stranded if the player does not have or is unable to obtain a Pokémon that can transport the player.
Contributed by Berry
When fighting Barry on route 203, he will say "Don't get cocky, kid! This isn't over yet!", a likely reference to Star Wars' Han Solo, who says something similar to Luke Skywalker.
Contributed by nolanms1
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Rotom has more forms than any other non-legendary Pokemon, and when you battle it in the generation IV games it's the only non-legendary Pokemon that uses a legendary Pokemon encounter theme.
Contributed by Funland47
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In the non-English European versions of Pokémon Diamond and Pearl, Registeel's sprite was changed because the position of its left arm was similar to the Nazi salute. In Pokémon Platinum, the sprite was changed for all regions to the continental European variation. This change was retained in HeartGold and SoulSilver.
Contributed by CodenameToast
The title screen music for Pokemon Ruby, Saphire, and Emerald can be found in the code for Diamond and Pearl. It is labeled "MIDI HEX 0003" and was likely used for testing purposes during development.
Contributed by WhiteSamurott
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There are 9 unobtainable items within Pokemon Diamond & Pearl. Some were removed entirely, some were replaced with updated versions, and some are only available under certain conditions.

These items and descriptions are as follows:
Park Ball - Captures Pal Park-transfered Pokémon without fail (obtainable in game but only in Pal Park)
Cherish Ball - Normal chance of catching a Pokémon (Pokemon received from official distributions come in this ball)
Boat Ticket - Ticket for the Luxury Liner SS Anne
Contest Pass - Allows entry into Pokémon Contests
Magma Rock - Mystical item that maintains the Stark Mountain's volcanic activity
Red Chain - A mythical item created by the Sinnoh Legendary Trio to awaken Dialga/Palkia
Rule Book - User's guide to online trading
Seal Sack - Holds up to 10 Seals
Treasure Sack - Holds treasures found Underground
Contributed by AussieYak
Within Route 218, inside one of the hallway type buildings, there is a guard who will tell you how thirsty he is. However, bringing him a drink of any kind won't do anything.

This is a reference to the original games, Red/Blue/Green/Yellow, in which the player must bring the guards a drink to enter Saffron City.
Contributed by PheonixGRX
On January 12th (Director Junichi Masuda of GameFreak's birthday), Fly up to Snowpoint City and instead of the usual flurry snow storm, there will be glittery diamond snow. There are also a number of other dates that this Diamond Dust can be seen.
Contributed by PheonixGRX