Anti-aircraft ropeway cluster. They fire up a storm.
Sign: Hakone Ropeway
OMF: OK, I don't normally complain about Anime Physics™, but, seriously, have Gainax ever even heard of the Conservation of Momentum? There's a reason nobody has done something like this, you know.
Reichu: Explain for the physics idiots?
Mr. Nice: The guns are suspended from a rope. As soon as they start firing, they should start spinning like catherine wheels from the recoil.
OMF: What Mr. Nice said. Think of the bullets as rocket exhaust.