I like the 360 degree movement, but I'd prefer it if the stages were a little larger and the points placed in random locations. The addition of different vehicles for difficulty was pretty cool.
My "tail" seemed to increase at some random interval after getting the point, instead of immediately like I expect and desire. Still, pretty good effort, better than most random games around here.
Fix physics. AI doesn't react to your motion well enough. Disallow the straight-on shot if you have to, since that causes the AI to just sit there bouncing back and forth for eternity.
Should've mentioned initially, but you can press Ctrl (or Command on a Mac) to rise the blocks by a line. It makes the beginning a lot more fun. Plus you get bonus points.
This isn't supposed to be the latest and greatest ultra game... it's just a quick programming exercise I did the other weekend. :)
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 "12-Hour Puzzle"){kind=icon}