In space no one can hear you scream is awarded by using Magj'ryk spell on hammer and then using hammer on third mirror, in mirror room.

So that's what's behind the door is awarded for knocking goblin in grand hallway down five times, taking his key and using it on locked door in lower catacombs.

Ole king Duggan was a merry, dead soul is awarded for giving the dead king back his scepter and ring. Ring is found on goblin in previous room. You might need to knock it down couple times to find it. Scepter is found at beginning of the game, in one of the tombs.

The invention of death metal music is awarded for using every instrument and platinum horn (on self) in music room.

* You might need to make three holes in the flute first.

Don't wake the neighbors is awarded for using the mallet on gong in lower catacombs.

I wonder what this does is awarded for pulling the left chain in small chamber, before placing any runes.

How not to train your dragon Is awarded for using mirror on wyvern and riding it. Mirror can be found in study.

NIMH'ed is awarded for consuming the white vapor in laboratory. To create vapor, use root, animal skull and moat water on contraption and cast Myxx spell on it.

Am i drunk yet is awarded for disguising yourself as goblin (helmet, tunic and shoulder armor) and drinking two cups of grog in guardroom.

Djinn for the win is awarded for solving Djinn's fifth riddle. Answer is the key found in upper catacombs.

This one only works with retro commands. First you need to use contraption in laboratory to make blue vapor (animal skull, sugar, dead flowers and ice*). Then you need to get in catacombs and use hammer on lava flow**. Make your way back to laboratory and use Yorick on blue vapor. He should change color to blue. You can now use lava enchanted hammer on Yorick to explode him and killing yourself, or you can go to guardsroom and take couple goblins with you.

* See comments on how to get ice.
** You might need to use Magj'ryk spell on hammer to enchant it first.