Singapore level, can't break bridge chain

[Bichobola]

Hi guys, trying to play the Singapore level in dual player mode, I found a problem.
I can't break the bridge chain, and can't break the door's red seal also.

This is a link with the exact image: https://ibb.co/iQxDw6

Anyone knows how to do it?
Thanks.

[lasanga]

you dont

[Scytale]

You don't. Singapore's bridges are unbreakable.