This was a tough choice. Code Veronica was great but I still have to go with R.E. 4 for PS2. Very visual and extremely interactive. When you light the wooden pull cart on fire and then send it down the hill crushing a mob of angry zombies in it's path. Or jumping from mine car to mine car in an attempt to evade the evil minions who jump into the moving train from platforms above. How about opening a trap door and having a giant bad guy, hell bent on killing you, fall into a pit of liquid hot magma. Did I forget to mention, "They (the zombies) carry weapons!" Finally the monster fight back with more than just moans and teeth.