The action of Serious Sam II is both intense and hilariously fun, and at times you may catch yourself not breathing for long periods of time. The enemies are simply gigantic, and at one point I encountered what I thought was the first boss of the game, until another dozen massive mechanical spiders dropped in all around me and I realized how mistaken I was. Enemy counts are higher than ever, with one level in the early stages of the game having over 330 enemies, with a later level throwing more than 1,100 enemies at Sam (we're promised the final game will have even more). Serious Sam II also throws over a half dozen boss fights at Sam, all of which are absolutely massive and leave the player with a sense of accomplishment.
In addition to more powerful weapons and much larger enemies, Croteam also added numerous vehicles and stationary turrets. Serious Sam II delivers numerous moments of sheer bliss. Imagine how fun it would be to fly around blasting enemies in a Star Wars-esque hovercraft while football orcs throw flaming footballs at you, ships fly overhead on bombing runs and attack runs, and objects caught in the crossfire crumble around you. Now do that numerous times, and mix in stationary pulse and minigun turrets, and you might find that Serious Sam II delivers more fun than you can handle.