Morph 20 Zerglings during the first 255 seconds of a single Melee game.
Rescue all trapped Swarm Queens before Naktul’s forces arrive in the “Rendezvous” mission on Normal difficulty.
Complete the “Lab Rat” mission in the Heart of the Swarm campaign.
Create 100 Larvae with Queens in an Unranked or Ranked game.
Kill 50 supply worth of units within 15 seconds in a Melee game.