Hand Cannon (Dead Space 2), the lethal joke weapon in Dead Space 2. When Isaac use it he will yell "BANG!" And "PEW! PEW!" to damage Necromorphs.

How to use it:

John Wick's pencil (John Wick Chapter II), cause why not ?

ICA Executive Briefcase Mk II (Hitman 2 Game): It can be used as a non-lethal melee weapon, when you throw it the briefcase will home the target who is running straight or run into the corners.

How to use Homing Briefcase:

-Kolibri (Battlefield 1), the smallest yet deadly 😂 LOL.

How to use it:

-Infinity Slippers

How to use "Infinity Slippers".

These are the deadliest and the most powerful weapons in my opinion. So what is your deadliest weapons in your opinion ?