Alternate Nosferatu death
There are two ways to kill Nosferatu, normally where he will just fall to the ground and with the sniper rifle. If you kill him with the sniper rifle, you will be treated to a sequence featuring Claire blasting his heart into pieces.

After shooting the Nosferatu enough to where he is almost dead, instead of wasting more ammunition, just take your hunting knife and stab him in the chest. A FMV sequence showing you do this will appear.

Avoid bats
With Claire or Chris, use your lighter to avoid bats. Keep it out and they will not bother you

Avoid getting poisoned
When in the Antarctic area in the room with the moths, they can land on you and leave a bug on your back. When the bug explodes later, repeatedly press L and R to avoid getting poisoned.

Battle mode
Successfully complete the game under any difficulty setting. The game will automatically save to the VMU after the credits have completed. A battle mode option will be unlocked at the main menu.

Battle mode in first person view
Collect the sniper rifle at the end of Disc 1 that Alexia drops. Note: Collect the sniper rifle that Alfred Ashford drops in Disc 2 in the Japanese version of the game.

D.I.J.'s identity
The person who wrote the D.I.J. diary is the mouse that jumps out of the locker in the Antarctica section of Claire's scenario of the game.

D.I.J.'s journal
You find D.I.J.'s journal in the slot machine in battle mode. Sometimes you have to play more than once to find it.

Defeating the first Bandersnatch
The first real Boss is a Bandersnatch that Alfred Ashford sets out for you. The best way to defeat it is to run to the stairs and climb down. It will jump to the lower level to get at you. Shoot it five times with the Bow gun using ordinary arrows. Climb back up the stairs and the Bandersnatch will use his arm to hoist himself back up to where he started and you can shoot him again. As long as you keep running up and down the stairs he will never get near you -- when he jumps to another level he starts back at the farthest distance away from you. Use the Bowgun because you can get hundreds of arrows during the game, conserving your more powerful weapons (such as the MP-100s and MRI-19) for more dangerous enemies. Although this is the only Bandersnatch in the game that you have to kill, it is the easiest.

Defeating the first stage of Alexia
When Alexia is in her transformation and going to kill Claire with one hit, shoot an arrow to save ammunition for the other weapons.