Just completed it and did have a good time doing so.
Reiterating what others have said, a restart button would be great and perhaps a numerical energy bar option would be handy when trying to work out if more flowers of a given colour should be sent out.
Original concept.
I like this game.
If you want the badge, play in hard mode and kill as many bombs as possible when you get the shield. This should boost you about 15K. I just sweep the right-hand edge as the bombs generate faster if none are on-screen (as you've taken them out).
I tried this game ages ago and thought I'd try again. I must admit, I'm not too keen on the fake 3D aiming side of things, but the atmosphere was great.
Got 603 kills on my first try this time round, so figured I'd post my strategy:
Research weapons heavily until you get the chainsaw then only ever fix the barricade
Never get recruits
I used the machinegun all the time until there were a fwe too many zombies knocking at my door, at which point I'd use the chainsaw. Seems you can get head shots with that too if you aim right.
Other thing is, with the chainsaw, it doesn't matter if the wall goes down as you can defend yourself (as long as there aren't too many I guess).
Ok game.
Think I've finally worked out this whole issue with sun's attracting more than planets and just general pseudo-randomness of which planets attract more.
The mass is correct, but not distributed across the planet (ie is a singular mass as its centre). Big planets with high mass therefore seem to attract less than small planets (and suns which tend to be smaller) as its easier for the ball to get close to the actual mass instance itself (at the centre).
If this is a known fact, it certainly is not made clear in-game.
Geesh that was excrutiating.
My only advice would be to not fire a single shot in the 10 minute survival mode so as to increase frame-rate and make the time go by slightly faster.
As Sparkius said, try refreshing and being patient. I eventually got my card.
Campaign 1 finished, just 1 machine-gun used, no damage taken apart from the flying helicopters. No shots fired by the flying boats or flying brains :D
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