It was released in June 2007 in North America, and in October in the PAL region (Wii only).

The Bigs features "outrageous visuals and intuitive gameplay mechanics", focusing on stylistic rather than realistic design, and gameplay featuring power-ups and turbo.

Minnesota Twins first baseman and former MVP Justin Morneau is featured on the cover of limited edition Canadian version sold exclusively by Future Shop and Best Buy.

Radio host Damon Bruce provides play-by-play commentary.

When the first trailer was released, gameplay bore a striking resemblance to Midway Games' MLB Slugfest series, but in an IGN interview, producer Dan Brady stated that "the Slugfest design team made a lot of choices that really made it difficult for a fan of baseball to take the game seriously.