Here is the full list of all 19 You... and who else? achievements.
Secret Beach Discovered
Karol Defeated
Henrik Defeated
Ejeryghadon Defeated
Inferis Manor Conquered
Minotaur Defeated
Dragon Defeated
Annabella Defeated
Survived Death
Circus Conquered
Lamia Defeated
Orianne Defeated
Kayzer Defeated
Giga Ogre Defeated
Red Dragon Defeated
Survived the longest fight
Ancient Demon Defeated
Poltergheist Defeated
VICTORY!!