If you didn t already pick up the raritanium found in the middle of the room and then go to the door with the trespasser puzzle that s locking it.
Ratchet and clank deplanetizer locked doors.
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In the final level on the deplanetizer you come across several doors with lock symbols some of which you need to pass in order to get to captain press j to jump to the feed.
However the one that is off map does unlock a trophy.
It should be right in front of the last door.
Beyond that locked door is a card.
On my map it s grayed out.
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You don t get inside the locked areas.
The 2nd time you visit the deplanetizer you go through the hanger and to the right where this is a locked door.
It s a square room.
There are numerous side corridors here but all of them are locked head straight ahead along the middle one until you reach door with a button.
For ratchet clank on the playstation 4 a gamefaqs message board topic titled deplanetizer locked doors.
Solve it and then head into the tunnel to get to.
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