@jamsterrat: you will probably need to get some decent energy(+15 or more), then you could build about 8 launchers, with a couple of blasters.
@zuzzan: to kill the drone you will need about 8 blasters (consider having more to hold back the creeper while others work on the drone), and get at least 2 upgrades on the last two techs.
Also, you shouldn't "meet" the creeper until you get everything set up, if you haven't got most things set up before the creeper on the left goes past the conversion bombs, then you might be behind in schedule.
@ spagheti meatbal, try doing it on the very bottom, go into the firing range, get close to the red tank and switch to map 8. then use 2 flowers then do it.
If you haven't noticed, the trophies(there are 12), start from the top and count the # of month your birthdday is in-Clock wise(ex: if you are born in january, it's the first one:Garnet, if you're born in july,, it's the seventh one:Ruby),and that's your birth jewle.
already on it