Full list of all 82 Sir Whoopass: Immortal Death achievements.
The base game contains 66 achievements, and there are 2 DLC packs containing 16 achievements.
"Defeat" The Immortal
Kill 1000 enemies
Dodge 500 times
Release all the chains
Kill the Ent
Get full strength when Level Up
Get full protection when Level Up
Get full agility when Level Up
Get full luck when Level Up
Eat 500 Gnomes
Get the Jetpack 2000 by cheating
Collect 50 Wheels of Cheese and make Sheo proud!
Kill a Grenadier with your bare hands
Visit a place you shouldn't actually visit
Kill 500 enemies
Collect at least 100 eggs
Kill Big Boi
Eat 100 Gnomes
Jump 500 times
Kill your first Grumpy Worm
Kill a Billy-Goat
Find and buy the HoverCraft 2500™
Kill yourself with metal bars
Collect 25 Wheels of Cheese
Loot 6 drunken orcs
Kill your first Billy Bob
Kill an enemy using metal bars
Whoop Ass 10 times!
Kill you first Grenadier
Kill your first Shotgun Knight
Dodge 100 times
Eat your first grilled chicken
Kill your first IRS guy
Kill the clown in the sewers
Kill your first Fungoid Bob
Blow up yourself and an enemy with a dynamite barrel
Live out your cowboy dreams and make a triple-shot
Beat the first Flappy Knight level in the arcade machine.
Spoil the Bard so he can afford new and fancy clothes.
Have three grogs in total
Drink five large grogs at the same time
Drink your very first grog
Make the Bard play another song while you are drunk
Jump 100 times
Kill 100 enemies
Kill your first Skelton warrior
Find the marvelous Chickenator
Use the stinky outhouse
Get eaten by a shark
Pick up a Mistlefoe
Buy a surpise from Melisande
Collect 10 Wheels of Cheese
Make the Bard play another song
Collect 5 Wheels of Cheese!
Put out the fire
Kill your first Sven-Olof
Dodge 20 times
Jump 20 times
Kill your first Orc Hipster
Kill your first Orc Warmaiden
Catch fire
Collect your first Wheel of Cheese!
Read a book from a bookshelf
Kill your first Orc Noob
Get your very first lethal weapon
Eat your first Garden Gnome
Complete the dungeon 100%
Find all 6 pairs of Deal-with-it glasses
Find a pair of Deal-with-it glasses