There are 28 movies in KoF XIV for you to unlock. If you clear arcade mode with every team, you will unlock all of the movies. Here is how to unlock each specific movie:
-16 of the movies are unlocked by clearing arcade mode with each of the teams.
-2 of the movies are unlocked by clearing arcade mode with Antonov and Verse. To get their endings, you need to make each of them the first character you select on the CSS and clear arcade mode. You can only get Antonov and Verse’s endings one at a time. So for example if the first character is Antonov and the other two are Verse and Sylvie, you’ll get Antonov’s ending.
-5 of the movies are different variants of Verse appearing after beating Antonov. Four unique Verse intros are shown when going through arcade mode with Japan team (Kyo’s team), Another World team (Nakoruru’s team), China team (Shun’ei’s team), and Official Invitation team (Sylvie’s team). The other Verse intro is seen when using any of the teams not already mentioned.
-The other 5 movies (Intro, Prologue, In Progress, Antonov Appears, and Verse defeated) are unlocked by clearing arcade mode once with any team.