Demon slayer is an achievement/trophy unlocked in Agony and its UNRATED edition.
This is an alternate achievement to unlock when pushing the Onoskelis off to the Pit in Chapter 1, but leading her to sudden death (hence the achievement's name). To do so, run faster to behind her and quickly push her off.
This can be only achieved in Story Mode.
|Can I lick it? • Demon slayer • Did I just bore him? • Finally, a bath! • Good and Evil • Heart breaker • I am enlightened • Ice Age • I found a job! • I have a beautiful soul! • I'm on fire! But I like it • I'm thirsty! • It's a secret • I was born to rule! • Lara would be proud! • Let me see you • Never ending agony • Nice try • Pact with the devil • Pull it out! • She looks good in red • Survivor • The force is with me • The great painter • The richest man in hell • The Scarlet Woman • There is always something bigger • This time, I will use the elevator • To the sunset! • Unforgettable journey • Wait for me my Goddess! • What a beautiful taste! • What have I done? • Where are you, pet? • You look just like your father • Your soul is mine!|
|Painkiller • The Jaws • They're now in the better place • You're so hot right now • Babysitter • Spiderman • What a smell... • I believe I can fly|
|To be added.|