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
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
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
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
