Serious Sam: Double D XXL Achievements Here is the full list of all 30 Serious Sam: Double D XXL achievements worth 400 gamerscore.Filter Achievement View View Image viewList view Sort by TrueAchievement desc TrueAchievement asc Achievement name desc Achievement name asc GamerScore desc GamerScore asc TA Ratio desc TA Ratio asc Gamers desc Gamers asc Xbox.com order Date won desc Date won asc Flag Filter All None 30 Offline Mode 28 Single Player 30 Cooperative 30 Host Only 4 Main Storyline 1 Story Completed 12 Collectable 1 Cumulative + 5 Shop Link flagsOR joinAND join Achievements without these flags What are achievement flags? Click to find outApply Monkey's UncleDefeat the boss of Ancient Egypt 1 guideYou Bet JurassicDefeat the boss of Prehistoric Nova Scotia 1 guideGetting SeriousBeat the campaign on any difficulty 1 guideSeriously ToughClear 2 Challenge levels 1 guideSeriously NutsClear 8 Challenge levels Seriously UnstoppableClear all Challenge levels 2 guidesWhite Men Can JumpFind the Jump Pad 1 guideGnaar-body's FoolKill over 50 Gnaar in a single level 1 guideUnflinching SamBeat any level without dying 1 guideUntouchable SamBeat any level without getting hurt 2 guidesDino's Best FriendConvert 3 dinosaurs to your side by destroying their helmets 1 guideSpeed runnerComplete a level from the start at over 100% gameplay speed in one sitting. 1 guideGUNSTACKAAAAAAaaahhh!Create your first 6 gun stack 1 guideCat Jumped in My LapDie in the spikes in the tutorial area of level 1 1 guideRepeat CustomerBuy 4 different upgrades for one gun type 1 guideLike ButtaTrip a Therizinosaurus with the Hot Butter Spreader 1 guideTricked OutBuy at least one of every upgrade 1 guidePawn ShopRevert at least one gun to get some money back 1 guideGet SomeBuy 16 different upgrades 1 guideTickets to the Gun ShowFind 16 guns Gun AficionadoFind all guns 1 guideRed Light RendezvousFind the Secret Red Light District 1 guideI Heard You Like ParallaxFind the Secret Monument to Parallax 1 guideExterminator SamKill a Giant Flea in Fireball Fury 1 guideTempleton's BuddyHelp Templeton unlock his secret room in Amethystine Depths 1 guideQuad PowerFind all 4 of any gun type Laura Who?Find All Secrets 1 guideParadox ShmaradoxReplay any previous level with new inventory (Choose Level menu) 1 guideMy Man HuffBeat a level in coop 2 guidesTwo Can Play At ThatBeat a challenge in coop 1 guide