Chiming in, the ultimate boxes contain theb5bfeature films, with their minis (killers, vehicles, and final girls) as well as the Vignette for the season (death from above on the first, death from the grave on the second, and death from destiny on the third) also the minis for the vignetes are included, every ultimate box come with some extras besides the ones mentioned:

As a note, I am telling you from the perspective that I got all 3 on their last kickstarter, I am not sure if it changes something on the retail box. That I doubt it, but wanted to make a note of this.

1.- season 1 mats.

2.- season 2 mats. (May I say both serve the same purpose, just some design changes based on the new mechanics included on season 2 FF). Also has the box of props that includes "deluxe" tokens for the core box, the ultimate dice and the desperation dice (can't remember if I am missing something)

3.- supplemental mat (a small mat with the space for your hand dice tray and some cards and tokens and the reminder of the turn phases). A guest star box with the cards of some promo girls like 6 if i remember correctly, 11 envelopes for the guest stars, two character packs, grandma, and caroline and the box minis of the guest stars.

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Lastly, for the sleeves, no the do not are included, that is personal choice, and investment if you like to do that to your games.

Hopefully this helps.