It is a very interesting and fun game!
I arrived at wave 52 with 12337830 Silicon | 209909 GFlopS and 100 units on each of them.
I had to give up hope of beating AI after several years (joke) x)
But I wanted to go as far as possible and I realized it was illegal to do this to myself lol. That it was in the order of infinity even though I could have set a world record on it. ><
I guess it would be really good to have the possibility to use the keyboard keys to place the objects with the enumeration at the top for example: (1,2,3,4,5,6) As for some game of strategy!
This will make my execution faster than spamming the mouse click and hurting my fingers. XD
Add a zoom in and zoom out with the mouse wheel. In order to know where we should fill the holes, that would be fantastic.
The waiting time for waves from a certain moment should become shorter and shorter. Or with more enemies with increasing damage.
Bomber planes are cool. But why there had been no more little green guys, it's a shame. I liked it, he was funny.
One touch to pause the game would save my life. ^^ And also, save the score with a highscore board with the best records.
Otherwise, I didn't find any glaring bugs.
Apart from the text which overflows especially when we are at 100.
And the placement of objects that are not available after an attack but that I'm almost sure it's done on purpose otherwise it would be a little too easy.
The floor may not take on the texture (well, it changes but this supposed normal).
Despite the 'game over' indication, we can continue anyway.
Better visibility of the text announcing the waves would be good.
The audio and graphics are great, it gives a real feel to the theme.