YOU NEED HELP
I=CANNON
B=BUNKER
AT THE START PUT IT IN THIS ORDER
IBIBIB ALL THE WAY ALONG
AND UPGRADE THEM WHEN YOU HAVE ENOUGHT MONEY
THEN PUT MISSILE ON THE BACK
AND UPGRADE THEM TO FULL AS WELL
THEN GET PLANET SHEILDING
the best way i found if you go for a long game it will go slow
so group up all the ball things the attack the one with the most at the same time bring in new one from yore other balls
it is quick fast and you have a 70% chance of winning right away