Serious Sam HD: The First Encounter achievements

Serious Sam HD: The First Encounter

3.4 from 1308 votes

There are 12 Serious Sam HD: The First Encounter achievements worth 681 (200)

16,211 tracked gamers have this game, 515 have completed it (3.18%)

Achievement Details

Serious Co-op in Serious Sam HD: The First Encounter

Serious Co-op116 (35)

Complete a co-op game on serious difficulty and extra enemy strength on 400%.

  • Unlocked by 1,484 tracked gamers (9% - TA Ratio = 3.30) 16,213  

Achievement Guide for Serious Co-op

Taco Bob
704,235 (333,358)
Taco Bob
Achievement won on 16 Jan 10
TA Score for this game: 681
Posted on 16 January 10 at 06:26, Edited on 09 December 16 at 14:51
This solution has 27 positive votes and 2 negative votes. Please log in to vote.
This achievement might sound brutal at first, but it really isn't as hard as it sounds. This needs to be done in one sitting, but if you know what you are doing this can easily be done in 2 hours. Please note that if you freeze, disconnect, or join late you will not get this achievement. This has to be done from stage one to the end, without interruption.

First off, when setting up your co-op game make sure to change it to serious difficulty and then set 'extra enemy strength' to 400%. Also make sure you turn infinite ammo on. This will not effect the achievement and will make things much more manageable.

Also, YOU MUST TURN ON 'EXTRA MULTIPLAYER ENEMIES'. Unfortunately there is a glitch on one of the later levels, Karnak, in which the final door will not open unless you have this option turned on (ie. you can't finish the game unless this is turned on).

Now that you have infinite ammo on, there are two hidden weapons that will make you unstoppable. The first is the rocket launcher hidden on the first level. When you start go up the ramp and then head right. Jump on the railing and then jump on the top of the lower part of the temple. Just look to your left and there it should be. For a more detailed location, fast forward to the 1:00 minute mark on the first video below.

This rocket launcher will help you get through the first half of the game until you come across the cannon hidden in Metropolis. This one is hard to describe, so I suggest following the second video below. From now on this weapon will be your best friend and make most of the enemies a cakewalk (you might want to switch to the laser for Kamikazes and Harpies). In addition to the location of the cannon, the video below will show you how to get out of the map effectively bypassing the majority of the level.

In addition to this, I would suggest that you run past the majority of the enemies. Don't bother stopping and killing anything unless you are in a sealed area and have to. You have unlimited lives, so if you die you'll be able to spawn exactly where you were. Note: if an enemy is standing where you died, you will spawn in a preset location.

You might also want to master a technique called the rocket jump. It is where you jump while looking down and shoot a rocket at the floor to give you an extra boost into the air (an example of this is in the second video). This will help you get out of levels and bypass many other annoying situations. Whenever you see a wall that you think you can get over, try it and it will probably save you some time.

One last note, you do not need to complete the two secret levels (Moon Mountain and Sacred Yard). These are only bonus levels and do not affect any achievements, so you can completely ignore them.
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