I hunted this a while back before there was a games PH. A year later, I'm still playing this. The music is so calming I could play it on loop. Shooting the bad-guys is fun. And I have an excuse to play "I'm improving my touch typing!"
@adamslieb Oh man, I don't remember. I like starting in EZ mode so there's a slow calmer buildup. If I had to guess, I'd say I've gotten to the high teens before? It's been a while since I've gone for anything more than a break at work.
CryptoPoops