Blizzard have released the second of their Starcraft II “Battle Reports”, which feature developers giving a play-by-play as two players duke it out in the upcoming strategy title.
https://kotaku.com/blizzard-launches-starcraft-ii-battle-reports-5114108
This episode shows the Zerg facing off against the Terrans, and…well, it’s over 20 minutes of real Starcraft II gameplay footage. Get comfortable.