Full list of all 35 Nicktoons MLB achievements worth 1,000 gamerscore. It takes around 6-8 hours to unlock all of the achievements on Xbox 360.
Unlock all baseball cards
Defeat all the National League teams
Won a 9-inning game in a single-player game
You Pitched a Perfect Game!
Defeat all the American League teams
You went six or more innings and allowed less than four earned runs with your starter
A single player accounted for 10 or more RBI in one game
You earned at least 18 strikeouts in a single game!
Your starting pitcher went the distance in a 9-inning game!
You won a 9-inning game in showdown mode
Hit for the cycle
You won the Tournament!
Pulled off a Double Play
You hit a home run with a pitcher
You hit a turbo home run in IRKEN FIELD!
You won by only hitting singles
You chased the opposing team's starting pitcher in the first inning!
All starters on your team earned at least one hit in Single Player mode
You won a game by 10 or more runs!
Hit a turbo home run in the Poseidome
Gain an RBI from a bunt
Hit a turbo home run in Yolkus Stadium
Hit a turbo home run in Frosty Freeze Field
Hit a Grand Slam
Load the Bases
You hit a turbo home run in Ghost Zone Stadium!
Earn a multi-hit game with one player
You never fell behind
You hit consecutive home runs with the same player in two at-bats in the same game!
You won a Single-Player Game
Hit a walk-off home run
Hit a turbo home run in Air Temple Courtyard
Throw a turbo strikeout
You had a 1, 2, 3 inning with a single pitcher
Win a Distance Derby Round in Single Player