It's about 50k per goal / headline-feature. We'll make more of them depending on the level of funding. We're doing it to make sure whatever the level of funding we can be sure we'll deliver a our backers a well polished package.
If you've got a moment it'd be good to know your configuration. My default answer is to recommend Chrome, but all versions of Firefox are supported (for those without WebGL support we provide a small plugin as an alternative).
Actually, now I can see the menu, but neither "quick play" nor "create game" work. Says "Something has gone wrong - please try again". Firefox 16.02 on Windows 7.
I was finally able to play it, and one issue I noticed was that the sound becomes choppy when there are a lot of projectiles on the screen (which is, all the time :))