Alas, it was not done well. While the game does an excellent job of recreating the atmosphere of the show, down to the look of the town, characters and the original cast voices, what it doesn't do for more than 5 minutes is entertain. There are two modes, a single player campaign consisting of 20 maps and multiplayer deathmatch play. Game play consists of using a variety of odd weapons against hordes and hordes of brainless enemies intent on overwhelming the town. Weapons include your basic snowball, kick ball, sponge ball machine gun, alien ray, and the awesome cow launcher.
Most weapons have two fire modes, one that is quick and one that is slower but more powerful.
The map design is tedious. There are no puzzles, just a seemingly endless stream of bad guys to take out in between running to pick up power ups and more ammunition for your weaponry. There are hundreds of bad guys on the early levels, and the AI is nearly laughably bad. The bad guys more or less charge straight at you in long lines. The later monsters are tougher, but mostly because they overwhelm you in numbers and by being positioned in awkward locations.