Secret areas

[Yuhaney]

Right clicking on the wall brings up a messenge simmilier to this
"That hole is too small for a human" or something.

Yeah, and still Philip can push himself through much smaller hole!

Spoiler below!

Remember the hole that he make blowing up the TNT? Just be comparing them to each others and you noticed that the hole after blowing up the TNT is much more smaller!