Pokémon Diamond and Pearl

Pokémon Diamond and Pokémon Pearl are the fourth generation Pokémon games to be released for the Nintendo DS. Pokémon Diamond and Pokémon Pearl introduces 107 new species of Pokémon to the series. The game takes place in the fictional region of Sinnoh. The player can take control of Dawn or Lucas, and their main objective is to collect eight gym badges in order for them to enter the Pokémon League. Pokémon Diamond and Pokémon Pearl introduces a new sinister organization name Team Galactic. The mascot of Pokémon Diamond is Diagla who is the "Master of Time" while the mascot of Pokemon Pearl is Palka whose the "Master of Space."

Super Smash Bros. series

So far, seven fourth generation Pokémon are set to appear in Super Smash Bros. Brawl. Six of the creatures appear as Poké Ball Pokémon: Piplup, one of the three starters a trainer can choose, uses Surf as one of its moves, while Munchlax runs around the stage and eats any items it picks up. Manaphy uses Heart Swap to force players to switch characters with each others, whereas Regigigas performs Crush Claw. Cherrim and Shaymin were claimed to have been seen by players at Whobby 2008.

In terms of playable characters, the fourth generation appears to also receive some representation. An icon of Lucario has recently been spotted in an official Brawl trailer on the Japanese Wii website, indicating that it's playable. While not explicitly confirmed by Nintendo or the Smash Bros. DOJO!! to be in the game, it is extremely likely that Lucario is, in fact, a playable character.