Here is the full list of all 46 Super House of Dead Ninjas achievements.
Collect 100 treasures
Score 2,000,000 points in a single game
Score 1,000,000 points in a single game
Score 500,000 points in a single game
Run through Transdimensional Leakage without killing any mushrooms
Kill 50 enemies with bombs in one game
Create 4 custom costumes
Have a conversation with 10 ghosts in one game
Beat the game with Chaos Mode active
Die 1000 times
Complete the game on "Ninja" difficulty, starting from the roof.
Complete Boss Rush on "Hard".
Collect nine hearts in one game
Kill Disgust
Beat the game on Hard / See the True Ending
Publish a Custom Map
Descend 50 floors without killing anything
Kill Horror
Score 250,000 points in a single game
Beat the game without ever using bombs
Complete the game with the One-Armed Ninja.
Beat the game without ever using magic
Kill Doom
Kill Spite
"Off with their heads!"
Kill Abarghus
Defeat the One-Armed Ninja
Kill Torment
Kill 20 enemies with bombs in one game
Achieve Rage five times in one game
Kill 100 enemies in a single game
Kill Rage
Kill 50 enemies in a single game
Kill 5 enemies with bombs in one game
Kill 100 enemies with magic in a single game
Collect 15 tickets
Beat the game without ever using projectiles
Beat the game in under 7 minutes
Play at least 10 custom levels
Reach the bottom of Abarghus' Domain on "Ninja" difficulty.
Complete Transdimensional Leakage on "Ninja" difficulty.
Complete Boss Rush on "Ninja".
Achieve a 6 minute speed run or less on "Hard".
Achieve a 6 minute speed run or less on "Ninja".
Score 500,000 points in Ninja mode.
Score 1 million points in Ninja mode.