If you like this game, you should play it where it was originally uploaded: http://www.kongregate.com/games/XweaselX/1945-tower-defense
Don't play it here; it's stolen and will get taken down soon anyway.
lolsit, for level 8 if you also have it turn towards a blue sensing antenna until both sense blue, the bot will drive right across the center of the blue circle. Makes catching the gold bug a lot easier
You have to toggle the go/stop button once to get the interface to come up, for some reason.
I posted a video of level one: http://www.youtube.com/watch?v=eBLoEhqX37s
And level two:
http://www.youtube.com/watch?v=HwC1NdFayDU
Hopefully these will help you figure out the interface
I felt like the first boss was challenging, but well paced, but by the time I had upgraded my character a few times the game got wayyy too easy. You should limit the number of character slots if you want this game to stay fresh past the first few levels.