*Jennifer is not much of a fighter and healing items are limited, so if you can, sometimes it is better just to run away from battles.
*Always carry a fair amount of healing items with you, since you never know when an unescapable battle will pop up.
*Experiment with the "Find" command using different items to see what kind of new and useful things you find.
*While weapons like the steel pipe have longer reach, it also takes more time for Jennifer to recover after swinging it. So, in some cases it can be better to use smaller, close-range weapons.
*Don't let your gamer's pride prevent you from using a guide to help you-it can be near impossible to get through some parts of the game without a little help.
*The "master" weapons that come with the costumes you can get after beating the game once are very powerful but are glitched and will often go right through the enemy, so it is usually better to stick with the normal ones.