Technically, there aren't any "secret" weapons in Bayonetta 3 — but there are some weapons that are only obtained by defeating one of the game's strongest secret bosses.

Devil Rodin is probably one of the hardest to beat, even though you don't have to defeat this boss to complete the game. You'll first need the Platinum Ticket, which can only be bought from Rodin at the Gates of Hell. It costs 999,999 seeds and can only be purchased once you complete the main game.

Once you defeat Rodin, you get to add him and his collection of weapons to your arsenal. Not only is this devil a particularly powerful one when facing off against enemies, but his range of weapons lets Bayonetta tap into some of his abilities during her own combat combinations.

There are also two weapons that can only be obtained if you have a Bayonetta and Bayonetta 2 save file on your Switch. The Scarborough Fair, which is a set of four handguns from the original game, is only available if you have a Bayonetta save file. Love Is Blue, the set of handguns named Prelude, Minuet, Toccata, and Nocturne from Bayonetta 2, are also only available if you have a save file for the franchise's second game.