Most online games are short and fun to play, but once in a while you will stumble upon a long game with a complicated plotline. One of these games is Sift Heads 4. This is one of the most popular online flash games of these days. You play the role of a hit man who is about to go on some missions all over the world. You can take a look at the map and see which missions you will have to complete, but only one is unlocked. After you select it, you have to choose your weapon. At first, you only have $5,000, so your options are limited. After you gain some money, you will be able to buy any one of the 10 weapons available. You can only carry two guns and you can switch between them by pressing the space bar. Sift Heads 4 is a complicated game. You can't win any mission without a strategy. In some cases, you might fail simply because your weapon was too loud. This is why you should pay attention to the details. If you do reach the end of your first assignment, you will earn some money and a new mission will be unlocked. The graphics of this game are not highly developed, but it is better this way. The whole point about Sift Heads 4 is the fact that you have to focus on what you are about to do if you want to finish the game, not on the graphic details.