Effing cool. I LOVED the game (and was pissed I could never find one of the 'deluxe' editions where you could save/upgrade your character). I'll more than likely snap this one up Day 1.
I am definitely a day one purchase barring any major screw up of the game. It made Time Crisis look bad, this game was a lot of fun, and it looks like they are adding in several more modes. My wife loves games like these, she is the Queen of Area 51 in the arcade, so we will enjoy this immensely.