Super Crate Box is a game, and it is a pretty dang good game. It is also free.
It is quick, simple, and fun. What you do is you get crates. The more you crate, the more you score. In these crates, crazy weapons are there. So you take these crazy weapons and you kill kill kill the monsters that are constantly dropping from the ceiling to prevent them from hitting the fire because fire only makes them stronger. While gathering more crates for a higher score. Because each crate gives you a new weapon at random, replacing your previous one, you end up crazy switching between them and dashing about and man is it fun.
You should give it a look, people. You should look so hard you actually download it spontaneously.