People are complaining alot about "impossible" levels where you can't do it in one shot. Well in the description it plainly says that three of the levels require two shots to finish but you still get the ace. these are levels A, 35, and 33. All levels are aceable (not that i've done it).
pretty easy, getrs boring, and the super laser is just useless the other power ups are much better. The +50 reload is beast though. I'm feeling generous 4/5
BEAST FIRST SONG
--------0-5-5---9-9-9---------------------4-4-4-4-999-9-8886-9---0---4------------889--------0-3-3--------2---2--8---4---9---6-0---0---666-c------c-0---0--------------bbc8-7-6-1---2-2-5-4-4-a-------------------9-2-5-3-1-999-a------a--0---2-aa4-4-8-7-6-0-a
 "Multitask"){kind=icon}
 "Canabalt"){kind=icon}
 "the Game of Disorientation"){kind=icon}
 "GeoSketch"){kind=icon}
 "Pac-xon"){kind=icon}
 "Square2Ball"){kind=icon}
 "Pyro"){kind=icon}
 "Frantic"){kind=icon}
 "Punk-o-matic"){kind=icon}