CheatCodes.com has the complete list of all MLB Stickball Achievements and Gamerscores for X360, including all secret Achievements. All official X360 achievements for MLB Stickball as of Monday March 2, 2015 are shown below, or you can print out our Printable Achievements Checklist that shows all MLB Stickball Achievements and Gamerscores in a simple quick-reference format.
Break any window for an out.
Go three up, three down in an inning.
Hit a home run in Boston.
Collect a full team of pros.
Hit a grand slam.
Win a ranked match with a team of amateurs.
Throw a no hitter in a ranked match.
Hit for the cycle with one player in tour mode.
Hit the wheel on the barn in St. Louis.
Hit the basketball rim in Chicago.
Collect all 120 MLB® baseball cards.
Hit the water tower in Brooklyn.