Here is the full list of all 42 Super Mega Baseball 2 achievements.
Hit a homerun.
Edit a team logo.
Make contact with a 95+ score power swing at least five times in a single game against the CPU.
Throw a 95+ score power pitch at least five times in a single game against the CPU.
Get two outs on the same play against the CPU.
Make an out with a diving catch.
Foul-off four pitches with a two-strike count against the CPU.
Witness the opposing team make two errors in a single inning.
Strikeout 4 times in a single game with a single player.
While editing a Custom team, increase all of one player's skills to 99.
Hit a homerun with the bases loaded.
Throw at least one pitch of each pitch type in a single game.
Overcome a 5-run deficit for a win in a Season or Elimination game.
Reach a 10-run lead in a Season or Elimination game.
Win a game in every stadium.
Throw out a CPU-controlled runner while they're attempting to steal a base.
Hit four homeruns in a row against the CPU.
Get a base hit with a bunt while playing against the CPU.
Pinch hit with a full count and then hit a homerun against the CPU.
Steal a base on the first pitch after bringing in a pinch runner against the CPU.
Have a single runner steal both second and third base in the same inning against the CPU.
Have your entire lineup make a plate appearance in a single inning against the CPU.
Have a player with 6 RBIs but no runs in a single game against the CPU.
Strike out 15 batters in one game with a single pitcher against the CPU.
Win a game with a walk-off homerun using an "On Fire" or "Jacked" player against the CPU.
Win a game by striking out an opposing "Rattled" player against the CPU.
Hit a single, double, triple, and homerun with the same player in a Season or Elimination game.
Throw a called 3rd strike for the 3rd out with the bases loaded in a Season or Elimination game.
Make it to the playoffs in a Season of any length.
Win the championship of a Standard Elimination.
Win the championship of a Custom Elimination.
Win the championship of a Standard Season.
Win the championship of a Custom Season.
Hit a 500+ foot homerun.
Pitch a 9+ inning complete-game shutout in a Standard Season or Standard Elimination game.
Tally a regular season batting average over .400 with a player on your team (60+ plate appearances).
Tally a regular season ERA under 1.50 with a pitcher on your team (30+ innings pitched).
Hit a total of 500 hits.
Pitch 10 complete-game wins against the CPU (9+ inning games only).
Pitch a 9+ inning complete-game perfect game in Season or Elimination mode.
Win the championship of a Standard Season with a season average Ego of 80 or higher.
Win a 9+ inning game against the CPU at Ego 99 where both teams are Standard teams.