This movie has it all. It has to be one of the funniest, bloodiest, most enjoyable horror movies I've ever seen. Don't go into it expecting to be scared...it won't frighten you in the least. But it works wonderfully as a campy, blood-splattered ode to zombie movies.
The actors completely nail their quirky characters, and the entire movie is peppered with hilarious, memorable lines such as "I kick ass for the Lord!" and "Your mother just ate my dog!" Not to mention the all-out gorefest which includes an unfortunate bowl of pus pudding, two love-struck zombies getting it on, and an all-out finale involving a roomful of partying zombies, one remaining human, and a lawnmower.
If you only like straight horror movies, and like to be frightened by what you watch, this movie is not for you. If you can handle buckets of gore and manage to laugh while watching it, DEFINITELY give Dead Alive a chance.