Here is the full list of all 10 The Crazy Hyper-Dungeon Chronicles Demo achievements.
You have lit up all the torches in level 2!
You have plunged level 2 back into darkness!
You have examined 50 pieces of furniture.
You have washed your hands before and after using the toilet.
You have achieved 5 consecutive Flawless Victories.
You died for the first time (and hopefully the last!)
You killed an enemy with a single shot.
You have executed 5 surprise attacks.
You died during the very first tutorial...
You have perfectly completed the first tutorial.