Guide to the "Pro" Achievement

A guide to getting the "Pro" achievement quickly and painlessly

Pro Achievement

This guide is entirely for the "Pro" achievement since the others are trivial to get.

You'll want to start on the level "The Spiral" since enemies have a habit of getting stuck in certain spots. First, use only the pistol and grenades until you have 20,000 points. This may take a bit of patience but you really want to buy the rocket launcher as soon as possible, which should be around level 5 or so. The rocket launcher has two powerful advantages:

• It hits multiple enemies at once.
  
• It can damage enemies on the other side of a single block.

The rocket launcher starts with 60 ammo and you'll need to buy a lot more, but you start with enough. After you buy it, work your way towards the bottom of the map. The best part to hang out is in the bottom left corner. This is the farthest distance from where enemies spawn. Also, enemies tend to get stuck on the floor above you. Use the rocket launcher to shoot enemies above you, preferably at an angle but from directly below works well too. Few enemies should be able to reach you but they'll trickle in a few at a time. When most of the round's enemies are defeated, you can jump all the way to the top of the map to buy more ammo. Buy as much as you can to save yourself the effort. Then head back down to the bottom again and repeat the process.

There are two main hazards. The first is boredom and your hands hurting from firing constantly. The second is from zombies that spill green acid when defeated. If you take damage, stop firing if you can until you fully heal.

You'll get the achievement when Round 15 starts. You do not have to complete Round 15 to unlock the achievement. It may take 15 minutes or so total.

[Ves]

Very helpful. Ended up comleting level 14 with around 1000 ammo left for the rocket launcher. lol