Vent: press C while jumping to get to the secret area

invitation accepted: not sure what triggers the ending of prologue.. so just run around interact with stuff til the game is booting you to the 2nd part?

00:00 start
6:16 Statue 1
7:05 Statue 2
8:15 Statue 3


2 achievements are for 20 minutes in the Prologue and 20 minutes in the Nightmare