I've gone out of my way to get the StS acheivements. I still have:
Kill Donu with a Feed
Beat game in 20 mins (this is really hard, I've tried several times)
9 plasma (I'm surprised I haven't gotten this. I know I've had plasma runs)
25 focus (This should be relatively easy, haven't tried yet)
< 5 cards (This is also really hard)