April Fools' Day 2009

April 1, 2009 was an April Fool's Day that fell on a Wednesday.

Hoaxes

Bulbanews reported that a clan of Swinub had been found along the coast of Kelang, as "reported by" Pokettari Monsutari and was currently held captive at Area 51.

IGN showed a trailer for an "upcoming" Wii peripheral, called Wii Expand, along with a trailer of an "upcoming" expansion of Super Smash Bros. Brawl called Super Smash Bros. X Violence. As the name notes, the game "is" much more bloodier, with blood coming after every attack, and Link was even seen cutting the head of Mario.
Actually "announced" the day earlier, Legendary Pokémon announced that Nintendo had sued all Pokémon-fansites, due to these sites "leaking out" event Pokémon such as Shaymin before the events were actually announced.
Dogasu's Backpack was "opened" and reflected Mighty Morphin Power Rangers.
PKMN.NET announced the Pocket Pikachu.
The Pallet Tribune announced that another one of Rotom's formes has been leaked out, and that people who call (206) 202-7679 will be greeted by a message from Team Galactic asking them to reveal their Pokémon Platinum Friend Codes for a chance to win one of 100 Cell Phone Rotoms.
At The PokéMasters forums, one of the supermoderators pretended to be disgruntled, and moved private threads which attacked certain members into the public Miscellaneous forum. The threads in question were fake, but sparked outrage from some of the offended members. The prank was cut short and was followed by an apology from the staff.[1]

Nintendo.se, .dk and .no, the official Swedish, Danish and Norwegian Nintendo websites, announced that Shaymin would become available in the celebration of the release of Pokémon Platinum Version on the first Pokémon-event held in Sweden in two years. A proposal was held, asking what they though about finally getting Shaymin. The answers was "Ja! :3" ("Yes! :3"), "Nej! >_>"/"Ikke! >_>" ("No! >_>") and "Vad är Shaymin? :S"/"Hvad er Shaymin? :S"/"Hva er Shaymin? :S" (What is Shaymin? :S"). They also announced their all-new, and first, WiiWare game Örjans äventyr (Swedish for The adventure of Örjan) using the all-new game engien "Advanced Profit Recycling and Infinite Lag" and could have hundreds of enemies on the screen at the same time (albeit on a still picture) and was based on something that once happened, that everyone on Bergsala suddenly wanted raised salary and haunted the VD Örjan. He noted that his Mii caricature soon would conquer out Super Mario.