Using explosive weapons, kill 10 people in a row.
Kill an enemy player while you're dead.
In a match of at least 6 players, run 2 kilometers without getting killed.
Kill 500 people.
Find the XL4P Beam Gun outside of Bright Island.
Finish The First Encounter on single player.
Finish The First Encounter in cooperative.
Finish The Second Encounter on single player.
Finish The Second Encounter in cooperative.
Find the rising obelisk.
Defeat the giant lava golem.
Complete the first Egypt level.
Find Moon Mountains.
Find a secret bouncing rock.
Kill 100.001 enemies.
Deal a total of 1 million damage to enemies.
Unfortunately, we don't have the right model for it, so this'll do.
Mess with the gravity for a total of 60 minutes.
Kill 5000 marsh-hoppers with the chainsaw.
Complete a level in The Second Encounter using only the knife on at least normal difficulty.
Kill the Highlander in Valley of the Kings.
All Elementals acquired.
Find Sacred Yards.
Obtain the Crystal Skull.
Kill the boss and complete the South America episode.
Kill the boss and complete the Persia episode.
Kill the boss and complete the Medieval episode.
Finish 2 levels in The Second Encounter using only the knife in at least normal difficulty.
Kill less than 8 enemies on the first level of The Second Encounter in at least normal difficulty.
Finish the first level of The Second Encounter taking no damage in at least normal difficulty.
Finish the first level of The Second Encounter without jumping in at least normal difficulty.
This achievement is impossible to get.
Find and kill a Serious Sam developer in versus multiplayer.
Kill 100 monsters with mines.
Kill 50 players with mines.
Find a secret Plasmathrower in The Second Encounter.
Find a secret Minelayer in The Second Encounter.
In singleplayer, beat the last level of The First Encounter or the last level in The Second Encounter in the "I am Ugh-Zan" difficulty.
Get the gold medal on the Christmas 2014 survival level.
Find Bright Island's first secret level.
Find Bright Island's second secret level.
Finish the Bright Island campaign in single player.
Finish the Bright Island campaign in cooperative.
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