Don't let the random objects get past you... if you do there'll be trouble!!!
I've always wanted to write a defence game - now I have... woot!
Update - bugs fixed and mines toned down a bit.
FOR THOSE OF YOU HAVING PROBLEMS...
Please ensure you have the latest flash player 9,0,115,0 before writing brutal reviews of not-workingness! Unfortunately Adobe really screwed up the update process so you may even need to uninstall flash player, reset your machine and reinstall to get it working properly.
If all that doesn't work, then feel free to leave me scathing reviews (plus precise details of the problem, your equipment, operating system etc :)