Serious Sam Double D XXL Cheats - Xbox 360
Complete each achievement to receive the allotted gamerscore:
Cat Jumped in My Lap (5) - Die in the spikes in the tutorial area of level 1.
Dino's Best Friend (10) - Convert 3 dinosaurs to your side by destroying their helmets.
Exterminator Sam (10) - Kill a Giant Flea in Fireball Fury.
Get Some (10) - Buy 16 different upgrades.
Repeat Customer (10) - Buy 4 different upgrades for one gun type.
Seriously Nuts (15) - Clear 8 Challenge levels.
Seriously Tough (10) - Clear 2 Challenge levels.
Seriously Unstoppable (20) - Clear all Challenge levels.
Speed runner (10) - Complete a level from the start at over 100% gameplay speed in one sitting..
Templeton's Buddy (10) - Help Templeton unlock his secret room in Amethystine Depths.
Getting Serious (30) - Beat the campaign on any difficulty.
Gnaar-body's Fool (10) - Kill over 50 Gnaar in a single level.
Gun Aficionado (15) - Find all guns.
GUNSTACKAAAAAAaaahhh! (20) - Create your first 6 gun stack.
I Heard You Like Parallax (10) - Find the Secret Monument to Parallax.
Laura Who? (10) - Find All Secrets.
Like Butta (10) - Trip a Therizinosaurus with the Hot Butter Spreader.
Monkey's Uncle (10) - Defeat the boss of Ancient Egypt.
My Man Huff (20) - Beat a level in coop.
Paradox Shmaradox (10) - Replay any previous level with new inventory (Choose Level menu).
Pawn Shop (5) - Revert at least one gun to get some money back.
Quad Power (10) - Find all 4 of any gun type.
Red Light Rendezvous (10) - Find the Secret Red Light District.
Tickets to the Gun Show (10) - Find 16 guns.
Tricked Out (20) - Buy at least one of every upgrade.
Two Can Play At That (20) - Beat a challenge in coop.
Unflinching Sam (20) - Beat any level without dying.
Untouchable Sam (20) - Beat any level without getting hurt.
White Men Can Jump (10) - Find the Jump Pad.
You Bet Jurassic (20) - Defeat the boss of Prehistoric Nova Scotia.