-The game should be open, in the same vein as Ch.3, Ch.9. With tight, liner levels in between like Ch.5 and Ch.10.
-No more forced-walk sections, or anything that robs the player of control.
-No more transportation through locations, make it more cohesive adventure, morphing environments should be used subtly to mess with the player.
-No more NPC companions.
-No more trial-and-error deaths, less one-hit-kill enemies.
-No checkpoints, save rooms only.