checked-part =>Unlimited Grenade Glitch: If you have the grenade launcher and at least one pack of grenade rounds, you can multiply those six grenades into hundreds with this trick. Make your way to any item box in the game, then drop all your equipment but the grenade launcher into the box. 1) Equip the grenade launcher as your weapon. Load it with one kind of round (standard, explosive, or acid). 2) Place a different kind of grenade round, the one you wish to multiply in the first slot of your item box. When you open the item box, the item slot highlighted is the first slot. 3) Open the item box, select the empty Inventory slot next to your grenade launcher, and move the grenade rounds into this slot. 4) Close the item box, then open it up again. 5) Select the grenade rounds in your Inventory and move them back to the now empty first slot of the Item Box. 6) Press Lx2 to highlight the grenade rounds in the item box. 7) Select them and place them in your grenade launcher (i.e., once the grenade rounds are highlighted, tap A, then highlight the launcher and tap A again to load them in.) 8) Notice the 980 under the launcher? When you exit the menu, that number will drop to the 240 limit the launcher carries. 9) Instead of exiting the menu, highlight the old rounds which are now in the first slot of your item box. Drop them in the launcher. This will result in "980" rounds in the launcher, and a 740 round pack in the item box. Continue swapping these rounds as often as you like, and your inventory will begin to fill with rounds. Now, exit the item box and go have fun blasting the zombies. Those 740 round packs will last you a decent amount of time. ->Once Again Mode/Costumes: Once you beat the game, make sure to save your data after the credits run. When back on the title screen, you'll notice that the background will have changed. Choose to play the Once Again mode with your saved data. Doing so will allow you to access the new Hard mode, as well as placing a special key in your inventory that will allow you to access a special costume change. The key can be used to unlock the door at the back of the large mirror room on the second floor. Search the closet to find a rack of clothes. You should be given an option to change your outfit. In Once Again mode, Jill has access to a commando outfit, and Chris has plain clothes. Once you complete Once Again mode, Jill will have access to her Resident Evil 3 outfit, and Chris will have his Code Veronica clothing. ->Samurai Edge Gun: Complete the Normal mode game in 5 hours or less to earn the Samurai Edge gun in the next game you play. This is a more powerful pistol with unlimited ammo. ->Rocket Launcher: To enable the rocket launcher with unlimited ammo, beat the game on Normal mode in under 3 hours. ->Real Survivor/Revolver: Complete Once Again mode on Normal in less than 5 hours to enable the Real Survivor option at the main menu. In Real Survivor mode, item boxes are not linked -- that is, if you put a herb in one item box, it will only appear in that item box, and can't be accessed from any of the other item boxes. You will also start the game with a .40 Smith & Wesson gun with unlimited ammo, the aiming system will be in manual instead of automatic, and a new bonus costume will be available in the game (see the Once Again code entry for details). ->Invisible Enemy: Complete the game twice with either character on Normal to enable the Invisible Enemy mode. In this mode, all enemies will be invisible. ->One Dangerous Zombie: Complete the game with both Jill and Chris on Normal to enable this mode. While playing, a special zombie will follow you throughout the first part of the game. Don't kill the zombie, for doing so will cause the game to immediately end. ->Special Features: Beat the game in Invisible Enemy mode on Normal in under 5 hours to have access to this option, where you will get a special message from the development team, as well as a slide show of unused costumes. ->Crimson Zombies: You might notice that some zombie bodies don't disappear after you kill them. After you get the Armor key, these zombies will start coming back to life in a more powerful state. To avoid this, burn zombie corpses with the kerosene and the lighter. It's useful to note that if you kill a zombie by blasting its head apart, it won't return as a crimson. If you see a zombie on the floor with a red skull, it is a crimson zombie and likely to jump back up and attack you briefly. ->Check Zombie: If you want to determine if a zombie is alive or dead, sneak up somewhat close to it (but not close enough to get attacked), then back up. If the zombie is dead, you'll back up normally. If the zombie is alive, your character will back up warily. To determine if you've killed a zombie normally, check the floor. A pool of blood will appear under a zombie that is truly dead.