Gamers have learned not to expect much from co-op AI companions. Keep up, don't block doorways, and throw out the occasional one-liner is about the best we can hope for. Irrational Games will attempt to raise the co-op AI bar with its time-and-space-tearing partner, Elizabeth, in BioShock Infinite, and as the latest trailer demonstrates, she will, at the very least, pack a powerful punch. And by "punch" I mean "tornado controlling super power."

After most recently dealing with the companion "A" in Aliens: Colonial Marines (I left off the "I" because there is zero intelligence involved), I'm dubious of any artificial buddies these days. Here's to hoping Irrational transforms my AI expectations.