Slender: The Arrival

Achievements:

Easy 'Aware Wolf' Trophy:
You can easily get this trophy by viewing the powerups screen in the Arcade mode menu. To access it you have to select Arcade mode at the 'Main' menu and then go to 'Powerups Info' (bottom left).

Easy 'Riding a Slide in a Horror Game' Secret Trophy:
In the Prologue level go to the playground that is behind the house and turn right at the collectable that is there. Look for a small slide and go down it to get the secret trophy.