Definitely has flash game energy! Fun experience
I think I broke it tho, barely survived level 2 and then level 3 no enemies came, and neither level 4, and after level 4 there was a level 1 with no starts that wouldn't start and when I clicked again level 1 (real) would show up.
Also there were no more unlocks after the tank and I'm not sure that's on purpose or because I broke it