Classic Win
Win a complete game in 16-man roster against the CPU (1 pitcher)
Bronze
Clean Sweep
Sweep the post season (either mode)
Bronze
Couch Play
Play a local multiplayer game
Bronze
Grand Tour
Play a game in all 30 stadiums
Bronze
Home Run Flurry
Hit 3 Home Runs in a single inning in an Online Ranked game
Bronze
In Your Crawl Space
Mercy an opponent in online ranked mode
Bronze
Midsummer Classic
Win the All-Star game in Season Mode
Bronze
Online Ownage
Win 50 Online Multiplayer Games
Bronze
Plunked (secret)
Hit a batter with a pitch
Bronze
Punchout
Strike out the CPU
Bronze
R.B.I. Master
Hit 1,000 RBIs
Silver
R.B.I. Skills
Hit 50 RBIs with the same player in Season Mode
Bronze
Salami
Hit a Grand Slam (Against CPU or Online Ranked Only)
Bronze
Speed Merchant
Steal 25 Bases in online ranked mode
Bronze
Take A Seat
Strike out the side against the CPU
Bronze
Tater Time
Hit a home run (Against CPU or Online Ranked Only)
Bronze
Thievery
Steal a Base (Against CPU or Online Ranked Only)
Bronze
Walk Off
Hit a walk-off home run (Against CPU or Online Ranked Only)
Bronze
World Champs
Win the World Series
Silver