คุณ Q

You'll need a total of 1600 fragments when stepping into a transaction domain in order to purchase all items from both Herta and Screwllum.

In the James Bond franchise, "Q" is the codename of the head of the branch of MI6 that supplies James Bond with all his secret, fancy gadgets. The 'Q' stands for quartermaster. You get this achievement from buying a bunch of tools/powers all at once. - Credit: Junebug