Optional mouse-look camera. New toggle in Settings, next to the other mouse options: Turn camera without holding RMB. With it on, the camera follows your mouse the whole time and a crosshair in the middle of the screen becomes your aim — the way the game already plays on a controller. Off by default; the right-button drag is completely unchanged.
Info key on keyboard. Hold I to bring out every HUD button's label at once. This was controller-only until now. Rebindable like everything else.
Quit and Main Menu now ask first. Both pause-menu buttons open a confirmation that also reminds you your progress is saved before you leave, so a slipped click can't end your session.
New: the album's card close-up now tells you which key turns a card over. It shows on every card you open until the first time you actually flip one — after that it never comes back, and that's remembered in your save.
New: the first time you pick up a card you already have, a hint points you at the box near the TV.
New: the first time you aim at a slot in the duplicates box, a hint names the key that files the card into it.
Changed: the "throw a card" hint used to fire the moment your hand filled up. It now waits until a full hand actually turns a card down — the first moment putting one back is a problem worth solving.
Changed: the camera hint is skipped entirely if you play with the new mouse-look option. There's no button left to teach.
The album's page arrows kept offering Q and E after you picked up a controller. They now redraw for whatever you're actually holding, and follow a rebind too.
Fixed the mouse cursor going missing in the main menu after leaving a game played with the new mouse-look option on.