I now find myself wishing there was an option to play the other side. Either via a game that shows you the other side of the story, or via a vs. mode where you both build towers and shoot down enemies while sending out your own ships.
Encountered a bug. Once I reached day 199, I was unable to continue. It may have something to do with the fact that I accidentally overlooked that I wasn't using all my hours, but then it wouldn't let me continue even if I did use them all up.
The music gets repetitive, and it might be nice to see how many games you have on your site, but otherwise, it's a good start. Be really nice to see this thing expand into something bigger.
Have noticed a lot of bugs as I've played - items dissapearing from inventory, saves going back to earlier points in time, and so on. No exactly helpful. Especially when you loose the bulk of your healing items and the pheonix down...