i was thinking: i like how we have to find the zombies -- we're safe if we've cleared the current passage and stay in this passage -- it allows some time to think.

but i think it would be cool if there was also this one uber-zombie (walks on all-fours or something) that's actively searching for you. starts at the exit of the maze. just looks for you using the fruit of your research into how we traverse a maze. perhaps even slow and invincible -- that way you have to lead him out the way if you want to get passed him.

julz