User blog comment:JK55556/"Ranks required to unlock him/her" and "Unlockables"/@comment-35029270-20181221161347/@comment-26569706-20181221162003

That's true, but all the ingredients on the customer pages have to be unlocked with the customer itself on a specific rank. (otherwise the ingredients wouldn't even be on the customer page)

For games (like Pizzeria To Go!) that don't have ingredients for every rank, I would just say "Rank 27 (Pizzeria To Go!)" without listing the ingredient, as there is no ingredient unlocked with Hacky Zak in that game.

I might be misunderstanding you, let me know if I am.