The many types of characters throughout fiction who are difficult to stop or even slow down.
Tropes:
- Advancing Boss of Doom
- Advancing Wall of Doom
- Complete Immortality
- Determinator
- Flying Brick
- Foe-Tossing Charge
- Giant Equals Invincible
- God Mode
- God-Mode Sue
- Immune to Bullets
- Indestructibility Montage
- Invincible Hero
- Invincible Villain
- The Juggernaut
- Made of Indestructium
- Mysterious Mercenary Pursuer
- Nigh-Invulnerability
- No-Sell
- Non-Giving-Up School Guy
- One-Man Army
- Perfect Play A.I.
- Perpetual-Motion Monster
- Physical God
- Plot Armor
- SNK Boss
- Stone Wall
- Super Mode
- Super-Persistent Missile
- Super-Persistent Predator
- Unconscious Objector
- Unstoppable Force Meets Immovable Object
- Unstoppable Mailman
- Unstoppable Rage
- Why Won't You Die?
- You Can't Kill What's Already Dead
