Things You'll Need
Instructions
Use your pistol to injure the zombies and the knife to finish them off for the first three rounds. As the rounds increase, the zombies will gain life points and it will take more hits to kill them. Make sure you buy either the Olympia gun or the M14 gun as well as "Revive" before you leave this stage.
Open one door for each round from rounds 5-10, buying more guns as necessary. Work around towards the theater, and you should find the Mystery Box. If you don't get the Thunder Gun in the mystery box, once you get the "All Wall Guns" achievement, buy the M16. Do not turn on the power until you have either the Thunder Gun or the M16.
Hit the teleporter to begin the linking process as soon as you turn on the power. Continue to use the gun following the knife technique to kill the zombies as you move around to the lobby to complete the teleporter linking process. If you have the points to do so, the Bowie knife would be a good addition to your arsenal at this point.
Teleport up to the next level and upgrade the Thunder Gun. If you don't have a Thunder Gun, upgrade the M16.
Work your way around the theater as you kill zombies, shooting them with the Zeus Cannon when they form larger groups.
Use the M16 or Skullcrusher for the dog rounds, again switching to the Zeus Cannon or Thunder Gun as needed for groups.