The Tyrant is the ultimate biological weapon and the final boss of Resident Evil. You'll face it in two phases, with the second phase being the true test of your survival skills.

First Encounter:
- Location: Laboratory, often in a central chamber or prison area.
- Attacks: Powerful claw swipes, charging attacks.
- Strategy: This encounter is often designed as a chase or a survival segment. You typically cannot defeat the Tyrant here with conventional weapons. Focus on evading its attacks and surviving until a cinematic triggers, allowing you to escape. If you have powerful weapons like the Magnum, you can try to inflict some damage, but it's usually not worth the ammo.
- Recommended Weapon: Evasion, conserve ammo.
Second Encounter (Helipad):
- Location: Helipad, during the escape sequence.
- Attacks: Extremely powerful claw swipes, faster movement, can cover large distances quickly.
- Strategy: This is the final showdown. You'll have limited time before the facility explodes. Your initial weapons will do minimal damage. After a short period or a certain amount of damage, a fellow S.T.A.R.S. member (Barry or Rebecca) will appear and toss you the Rocket Launcher. Immediately equip it. The Tyrant will charge you. Aim carefully and fire the Rocket Launcher. One direct hit from the Rocket Launcher will defeat the Tyrant instantly. Miss, and you'll likely be killed.
- Recommended Weapon: Rocket Launcher (for the final blow).
- Reward: Game completion, various endings depending on your choices.