Morph 20 Zerglings during the first 255 seconds of a single Melee game.
Score the rank of Bronze in the “Psionic Assault” challenge mission.
Score the rank of Bronze in the “Opening Gambit” challenge mission.
Complete round 8 in “StarCraft Master” without losing any Stalkers.
Attack for 20 seconds with no counterattacks in an Unranked or Ranked game.