awesome 5/5. only problem, on east, change the color of the range bubble so it doesnt blend in with the tracks, also, the comment on cost/profit was correct, becuase every bloon give 1 money, and spikes can pop 10, therefore, if spikes cost 25, you lose 15 on each, assuming that you kill 10 each time
one more thing. If you dont get a badge for any reason, take a screenshot (ctrl+prntscrn, then paste) and send it to some part of kongregate, i forget which, with a polite letter explaining what happened, and you should get your badge;/challenge
for the record, the whole "you will prbably need to use every type of tower" is bs
You can do it w/o losing a single life if you just build bunches of dart towers with peircing down the center, and then corners when center line is full