Um, no.
Let's see...
You start off every level with the same slow, terrible tower. So you get to spend five minutes watching little army men walk slowly up to your tower and slowly get shot by your tower and slowly fall to the ground and die. Slowly. And there's no speed-up button. So it's very slow. And moves slowly.
Oh, and your starting tower gets 10,000 HP. So of course it makes total sense to have two heal buttons: one that spends all of your money healing the tower, and one that heals the tower for A SINGLE POINT OF HEALTH at the cost of a single upgrade point. That's some great design!
This could have been a pretty fun, albeit not particularly interactive, game. But boy did you suck all the potential fun out of it with poor design choices.