Separate Purchase Required
Separate Ways was originally a menu option (in RE4's PS2 and Wii releases). But times have changed; now, DLC exists.
The Resident Evil 4 remake's downloadable Separate Ways pack is more than a simple update and cash-grab, though -- this version of Ada's story is expanded, with a meaningful amount of new content and variety.
It doesn't play all that differently from the main game, which is a good thing: Ada collects treasure, upgrades her weapons, and blows up infected cultists a lot like Leon did. (Though she starts with an SMG, which is pretty fun.) And in cases where she re-treads familiar ground - like the village, or the hedge maze - Ada's grappling hook (!) makes navigating old areas feel "new" again.
This mini-campaign's story scenes and cinematics don't exactly add depth to the events of RE4; at best, they just tee up Wesker's Resident Evil 5 plot.
But Separate Ways gave me a few more hours of the dumb, exciting adventure that I enjoyed in the main game.
Better than: Batman: Arkham Knight - A Matter of Family
Not as good as: Control: AWE
Also gotta love: a beautiful laser hallway homage to the 2002 film.