PLEASE MAKE A SEQUEL PLS :((((((((((((

great game please add more towers

This really is a "Tower Defense. " Do you get it?

This tower defense game is the first of all I've seen like this.
Unique.
Good job... if you made it.

good game

the purple full upgrade. is pink the blue full upgrade is ice. the green full upgrade is light green. and fanally the yellow full upgrade is orange.the money i had when i ended was 135918.

Good but that is it.

I have to agree this was a very well made game. But of course there is room for many improvements like a before mentioned sell feature and more towers. But instead of more towers maybe you could make different paths each tower can follow. Also make different enimies they all are balls and try to add a boss every 10 waves. Add these and maybe you will get a 4+.