Here are some trailers for the first Pokémon Mystery Dungeon games on Wii. A set of new Mystery Dungeon Games are available for download through Nintendo's Wiiware service in Japan and you can take a look at them in action below.
There are thee Mystery Dungeon Games for Wiiware which translate as Pokémon Mystery Dungeon: Keep Going! Blazing Adventure Squad!, Let's Go! Stormy Adventure Squad! and Go For It! Light Adventure Squad! The games focus on on Water, Electric, and Fire-type Pokémon depending on which one you choose.
So in Blazing Squad Adventure you'll have Torchic, Cyndaquil, Charmander, Chimchar, Growlithe, Vulpix, Eevee, Buneary, Teddiursa to choose from. Stormy Adventure Squad features Squirtle, Mudkip, Piplup, Totodile, Wooper, Azurill, Riolu, Wynaut, Phanpy. Finally Light Adventure Squad includes Pikachu, Pichu, Pachirisu, Shinx, Elekid, Psyduck, Togepi, Mareep and Meowth.
In the Mystery Dungeon games, you take control of Pokémon and explore randomly generated dungeons.