Weapons that should exist in games but don't

[LongAndShort]

Oh! Oh! How about a weapon which is basically a gun with a jet turbine strapped to it. It creates such high winds that it throws your enemies through the air.

They tried something like that in World War two. Compressed air cannon. Meant to blow away enemies without damaging buildings and nature. Sadly didn't work out to well.

 

[Outamyhead]

Creme Brule gatling gun.

 

[LongAndShort]

A shoulder-mounted catapault. Like a stone-aged rocket launcher.

You mean like in Chicken run?