Complete Mission 1

Complete Mission 2

Complete Mission 3

Complete Mission 4

Complete Mission 5

Complete Mission 7

Complete Mission 6

Complete Mission 8

Complete Mission 9

Complete Mission 10

Complete Mission 11

Complete Mission 12

Complete Mission 13

Complete Mission 14

Complete Mission 15

Complete Mission 16

Complete Mission 17

Complete Mission 18

Complete Mission 19

Complete Mission 20

Complete Mission 21

Complete Mission 22

Complete Mission 23

Complete Mission 24

Complete Mission 25

Complete Mission 26

Complete Mission 27

Complete Mission 28

Complete Mission 29

Complete Mission 30

Complete Mission 31

Complete Mission 32

Unlock Extra 1 by collecting 3 Gold Medals and complete it

Unlock Extra 2 by collecting 5 Gold Medals and complete it

Unlock Extra 3 by collecting 7 Gold Medals and complete it

Unlock Extra 4 by collecting 9 Gold Medals and complete it

Unlock Extra 5 by collecting 12 Gold Medals and complete it

Unlock Extra 6 by collecting 15 Gold Medals and complete it

Unlock Extra 7 by collecting 18 Gold Medals and complete it

Unlock Extra 8 by collecting 22 Gold Medals and complete it

Unlock Extra 9 by collecting 24 Gold Medals and complete it

Unlock Extra 10 by collecting 26 Gold Medals and complete it

Achieve a Gold Medal in Mission 1

Achieve a Gold Medal in Mission 2

Achieve a Gold Medal in Mission 3

Achieve a Gold Medal in Mission 4

Achieve a Gold Medal in Mission 5

Achieve a Gold Medal in Mission 6

Achieve a Gold Medal in Mission 7

Achieve a Gold Medal in Mission 8

Achieve a Gold Medal in Mission 9

Achieve a Gold Medal in Mission 10

Achieve a Gold Medal in Mission 11

Achieve a Gold Medal in Mission 12

Achieve a Gold Medal in Mission 13

Achieve a Gold Medal in Mission 14

Achieve a Gold Medal in Mission 15

Achieve a Gold Medal in Mission 16

Achieve a Gold Medal in Mission 17

Achieve a Gold Medal in Mission 18

Achieve a Gold Medal in Mission 19

Achieve a Gold Medal in Mission 20

Achieve a Gold Medal in Mission 21

Achieve a Gold Medal in Mission 22

Achieve a Gold Medal in Mission 23

Achieve a Gold Medal in Mission 24

Achieve a Gold Medal in Mission 25

Achieve a Gold Medal in Mission 26

Achieve a Gold Medal in Mission 27

Achieve a Gold Medal in Mission 28

Achieve a Gold Medal in Mission 29

Achieve a Gold Medal in Mission 30

Achieve a Gold Medal in Mission 31

Achieve a Gold Medal in Mission 32

Achieve a Gold Medal in Extra 1

Achieve a Gold Medal in Extra 2

Achieve a Gold Medal in Extra 3

Achieve a Gold Medal in Extra 4

Achieve a Gold Medal in Extra 5

Achieve a Gold Medal in Extra 6

Achieve a Gold Medal in Extra 7

Achieve a Gold Medal in Extra 8

Achieve a Gold Medal in Extra 9

Achieve a Gold Medal in Extra 10

Use the P-LAH Chainsaw for the first time

Dual Wield the Shofield Desert Hawks for the first time

Dual Wield the Shofield Uzi Pistols for the first time

Use the XM4000 Minigun for the first time

Use the MK III Grenade Launcher for the first time

Use the XPML4000 Rocket Launcher for the first time

Use the Double-Barrel Shotgun for the first time

Use the RAPTOR Sniper Rifle for the first time

Use the SBC Cannon for the first time

Use the Serious Bomb for the first time

Use the Sirian Power Gun for the first time

Use the XOP Gas Gun for the first time

Complete Mission 1 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 2 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 3 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 4 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 5 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 6 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 7 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 8 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 9 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 10 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 11 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 12 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 13 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 14 on Normal or harder achieving a par in time and secrets while also getting at least 220 kills

Complete Mission 15 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 16 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 18 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 19 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 20 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 21 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 22 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 23 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 24 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 25 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 26 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 27 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 28 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 29 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 30 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 31 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 32 on Normal or harder achieving a par in time, kills and secrets

Complete Extra 1 on Normal or harder achieving a par in time, kills and secrets

Complete Extra 2 on Normal or harder achieving a par in time, kills and secrets

Complete Extra 3 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 17 on Normal or harder achieving a par in time, kills and secrets

Complete Extra 4 on Normal or harder achieving a par in time, kills and secrets

Complete Extra 5 on Normal or harder achieving a par in time, kills and secrets

Complete Extra 6 on Normal or harder achieving a par in time, kills and secrets

Complete Extra 7 on Normal or harder achieving a par in time, kills and secrets

Complete Extra 8 on Normal or harder achieving a par in time, kills and secrets

Complete Extra 9 on Normal or harder achieving a par in time and secrets while getting 380 kills

Complete Extra 10 on Normal or harder achieving a par in time, kills and secrets

Complete Mission 1 using only the pistol on Serious difficulty

During Mission 2, kill 50 enemies with the P-LAW Chainsaw on Normal or harder without dying

Start Mission 3 with all sounds settings set to 0 and finish it without changing them on Normal or harder

During Mission 4, kill 40 enemies while inside the Serious Car without dying on Normal or harder

During Mission 5, achieve 60 kills within one or multiple killing sprees without dying, on Normal or harder

During Mission 6, get 150 kills with the Double-Barrel Shotgun without dying, on Normal or harder

During Mission 7, get 140 kills with the XM4000 Minigun without dying, on Normal or harder

During Mission 8, get 90 kills with the XPML4000 Rocket Launcher

During Mission 9, get 20 kills with every weapon except for the chainsaw without dying, on Normal or harder

Complete Mission 11 without manually changing your active weapon (Weapon Change setting must be set to Always) on Normal or harder

During Mission 10, kill 20 enemies in a row without firing your weapon or dying, on Normal or harder

Grab 10 bags of 1000 points in Mission 12

During Mission 12, get 50 kills with the XOP Gas Gun without dying, on Normal or harder

Complete Mission 13 without dying on Serious difficulty

Complete Mission 14 only using Shofield pistols and uzis, on Normal or harder

During Mission 15, get 30 kills with the MK III Grenade Launcher without dying, on Normal or harder

During Mission 16, achieve a killing spree and get 20 spree kills all while driving the Serious Car on Normal or harder

During Mission 16, get 40 kills with the RAPTOR Sniper Rifle without dying, on Normal or harder

During Mission 17, get at least 15 kills with the Serious Bomb

During Mission 18, get at least 5 kills with a single sniper rifle shot

Complete Mission 19 using only the boomstick and chainsaw

During Mission 20, get 30 kills with the SBC Cannon without dying, on Normal or harder

During Mission 21, get 20 kills with every Weapon without dying, on Normal or harder

During Mission 23, get 100 kills with the XPML4000 Rocket Launcher without dying, on Normal or hard

During Mission 24, get 200 kills with the Sirian Power Gun without dying, on Normal or harder

During Mission 25, achieve 85 kills within one or multiple killing sprees without dying, on Normal or harder

During Mission 26, kill 100 enemies while inside the Serious Car without dying, on Normal or harder

Complete Mission 27 using only guns that use bullets (Pistols, Uzis, Minigun, Rifle, Shotgun and Cannon) on Normal or harder

Complete Mission 28 using only non-bullet Weapons (Chainsaw, Grenade Launcher, Rocket Launcher, Gas Gun, Laser Gun)

Complete Mission 22 in 5 minutes or less on Normal or harder

Start Mission 29 with all sounds settings set to 0 and finish it without changing them

During Mission 30, achieve 4 different killing sprees without dying, on Normal or harder

Complete Mission 31 without dying on Serious difficulty

Achievements in this set will only work on profile 1 "Serious Sam", Anything other then the "Beat the level" achievements are disabled in other profiles