Destroy 40 units with a single unit in an Unranked or Ranked game.
Kill the Brutalisk in the “Piercing the Shroud” mission without losing a unit to the Brutalisk on Normal difficulty.
Kill 5 Changelings in an Unranked or Ranked game.
Cancel construction of a structure that is being destroyed by an opponent in a Melee game.
Complete all the Guide Two achievements.