Resident Evil

When the game puts you and Barry in the dining room, wait until Barry sees the blood, then run back to the hall where Wesker is located. Wesker will tell you to " Investigate shots if heard". You will then be put back in the dining room. Try to go back in the hall and Barry will say "Cold feet already Jill? That's not like you.". When you try to walk to Barry, a alternate beginning sequence will appear.

There is a different arrangement of scenes that happens from the usual when you start a new game as Jill. After the "Cold feet" comment as described above, you will resume control of Jill. Go up to the fireplace where Barry is located. The game go through as normal saying, "'It's blood, let's hope it's not Chris'. Investigate the room for clues while I look at this." Have Jill go by the left side of the dining table (towards the clock) and a new intermission sequence will start.

Perspective, from side door
(Door knob turns)
Jill - "Who's there?"
(Door slams open and a zombie comes through and sees Jill.)
(Jill backs away as the zombie follows her.)
Barry - "Hey you! Get away from Jill!" "This guy is crazy!"
(Barry takes two shots and kills the zombie.)
Barry - "What the hell is this thing?" (This is Jill's line when it is done the normal way)

In the original PlayStation version of the game, this trick would make you able to take down zombies in three gunshots, but apparently it will not in the Gamecube version.
Kyle.

If you do not rescue either Barry or Rebecca (depending on which character you are playing), you do not have to fight the Tyrant the second time on the helicopter landing zone. To do this, either allow Lisa Trevor to knock Barry down the cliff while fighting the final battle, or do not rescue Rebecca when you hear her scream in the Spencer Emblem room. When you get to the helicopter landing zone, you will simply be picked up immediately after you set off the flares.

In the graveyard, go to the viewing angle where there are graves directly in front of the camera. Written on one of the graves is "Capcom" spelled in Greek letters.
.

If you are not sure if a Zombie is dead, walk up fairly close to it (but not so close that they start chewing your ankles) and simply back up. If the Zombie is alive, the character will do a wary backup move instead of the standard backup done when there is nothing there.

One way to see if a zombie is dead is to face away from it and press R. You should automatically turn around to face the Zombie if it is still alive.

To make sure that a Zombie has died when it falls down after shooting it, look down. If you see a pool of blood flowing, it is dead. If there is no pool of blood, the Zombie is still alive.
Ben Schellenberger.

If the zombie is on the floor and is still alive, its head will keep turning side to side.
JOSH WILLIAMS.

If you are not sure if a zombie is dead, back up away slightly so that you can see the body. If there is a blood pool around it, it is dead.
Justin.

In the area of the mansion where the fountain is drained to reveal the entrance to the lab, go to the right side of it. Look at one of the trees on the right side of the screen. There will be a very detailed rhinoceros beetle that climbs slowly off-screen. The beetle will reappear every time you exit, then reenter that particular camera view.

In the area surrounding Lisa's cabin in the courtyard, there is a side path that loops around the cabin and ends up back at the main trail. There is a particular viewpoint in the area where a tree takes up the left side of the screen. If you wait long enough, a rhinoceros beetle will clamber up the tree. This resets every time you change angles and return.
HelloMrMe.

When you almost have defeated a Zombie and it is on the ground, use the oil flask item. The Zombies will turn into Crimson Heads.

Use your strongest weapon. If playing as Chris, use the flamethrower then torch the babies.

Alternately, use this easier trick that also saves ammunition. When you fight Black Tiger, there is a smaller spider behind it. Just focus on killing the big one, and forget about the babies and the normal spider by getting out of the room. Every spider will disappear when you return.
Fernando Hoyos.

Chimeras only appear in the lab. Use shotgun to kill them.

Three blasts from the grenade launcher or six from the shotgun will kill him.

Take one self defense grenade with you. Let him grab you. If you have the grenade equipped, you will shove it in his mouth. It will then blow his head off as any other zombie. This will save ammunition and time.
jallenb21.

All Crimson Heads are right handed. If you stay to their left, they will never get you. This saves a lot of time by eliminating the need to always cook Zombie bodies.

Use the "Unlimited grenade ammunition" glitch with Acid rounds. Acid rounds will take down Crimson Heads in one hit.
Brasslvlonkey.