Great :D
This is more a game i can get into, however there was a few things missing that would of gotten you a 10 out of 10 with me
1. A few more towers would of been nice
2. the way the money for towers went up and down was a bit silly, it would of work better if the more you got of a tower the higher its price went
3. the upgrading was a bit too easy, a suggestion is that after you upgrade it once jack up the price for the next upgrade
But i am not all hateful
there was a few good positive to this game
1. dont see many games with 50 lives but it helped me so many times
2. i liked how you could set the map, its so annoying when you get this stock map and its too hard or too easy i made it so it was at my level
3. 50 waves was good some of these defence games have 35 waves or 100 waves 50 was a good round number for me
In the end you did a good job i hope to see another one soon