"Serious Sam 2"'s gameplay consists almost entirely of the player attempting to defeat dozens of enemies at a time, and thus is relatively simple. The game's story establishes the reasons and methods for how the player travels from chapter to chapter. This is a significant change from the previous games in the series in which the story existed merely to transport the player from place to place in order to kill as many enemies as possible in the process, with the plot consisting merely of messages that the player could disregard without consequence. "Serious Sam 2" features the story more prominently, but still maintains the focus on killing as many enemies as possible. The story is developed through the use of cut scenes, which are interspersed throughout the game, especially at the beginning and end of each Planet.