I love tower defenses, but I don't believe this game actually added any innovation to the quite over-done genre. It is a solid piece, but what's the point of making "just another TD"?
4 days... I didnt even do that well on day 1 ($1400), but if you use parachute and stay in the air to collect coins, you can get an amazing amount of money. On day 3 I got several times more money than I can possibly spend.
The conversation is cumbersome at best. I understand that you are trying to tell a lot fo story and give characters life and all that, but the game would be better if you can cut that down just a bit for the sake of being concise.
Great game. It is pretty easy to trap your past self by accident and there are some minor collision glitches, but the concept is very innovative and in most parts work well.