The idea with old-school graphics - one point. The simplicity of the game - second. Brings some old memmories back - third one. BUT! The graphics are fuzzy and are onerous - one point less. If it weren't for badges - I wouldn't play it...
Like AfterKnight wrote - Arc Spread, then Big Laser and finally Duck Death and the game gets quite boring, but I'll try to beat lvl 60. 4/5, nice and decent game.
Sorry for the double-post, but on second thought there are other bugs and awkward ideas, that just keep killing the whole pleasure, like the loading of the pages - you have to wait forever just to play...