It needs an ending. After you are finished with Arena 5 it goes to what seems like 6 but then after you upgrade it says you won.
Oh and that giant red turbine looking thing on arena 5 took way too long to kill...
Mouse reload? WTF? Ok I could understand if you were using your moust to aim and fire and thats the way you wanted to reload that would be fine? BUT WTF?
After I beat the game it gave me a website to go to with another puzzle game similar to this one and once i got to like level 37 or so it glitched out and i could not progess, when I kept hitting continue and quit over an over again it said I opened all levels and would glitch out on every level I tried to pick. Needs fixing.