Only gripe would be that I often find it strategic to form in the corners, but whenever one of the energetic balls gets trapped against a wall, it pops out and back into the play area through the upper right corner, popping the ball I was forming. Would it be possible, when an energetic ball gets trapped, to simply have it force it's way past whatever's trapping it? Moving in a predictable manner, rather than unpredictably popping in when I don't want it to?
I run NoScript in Firefox, and when I allowed all the items that were trying to run on the page, I was able to get the card. May or may not be the problem, but if you run NoScript or something similar, you may want to try allowing everything that tries to run from this page.
Definitely some luck involved, as to whether you get a "good" set of spawns for stars and mines. Skill is required to collect them, but that doesn't mean myuch if you get hemmed in by mines after you collect 3 stars. I haven't managed any better than 50.
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