Settings

Settings is the gear in the library toolbar. The pause menu has the same gear, so everything below can be changed mid-game and applies immediately.

Display

Setting	Options	Default
Screen filter	Sharp · LCD grid · CRT soft	Sharp
Palette	Grey · Game Boy green · Game Boy Pocket · Game Boy Light	Game Boy green
Color correction	on / off	On
Pixel-perfect scaling	on / off	Off

The palette applies to original Game Boy games only. Color correction reproduces how Game Boy Color games looked on the original LCD, which is more muted than raw output. Pixel-perfect scaling keeps every game pixel the same size on screen, at the cost of a border; off, the picture fills the screen. More in Video filters and screen layouts.

Controls

Not shown on Apple TV.

Setting	Options	Default
Haptics while playing (iPhone only)	on / off	On
Fast-forward speed	2× · 4× · 8×	4×
Connect a controller	opens the controller guide	—

Touch controls hide on their own while a controller or hardware keyboard is connected.

TV streaming

Not shown on Apple TV.

Setting	Options	Default
Nintendo DS on TV (appears once you own a DS game)	Top screen only · Both screens · Both, side by side	Top screen only
Play on your TV	opens the TV guide	—

Stats

Play activity — time per game and your achievements.

iCloud

A single status row: Up to date, Syncing…, Off, or an error. If iCloud isn't signed in, or the build was installed without iCloud entitlements, the row says why. Details in iCloud sync.

Help

The four in-app guides — Connect a controller, Play on your TV, Add games, Link & trade — ordered for the device you're on, plus Send feedback.

Diagnostics

Performance overlay (default off) draws frame rate, audio buffer health and CPU use over the game. Handy when you want to confirm a full 59.7 fps on your hardware. See Troubleshooting.

About

Version and build number, and Acknowledgements with the full licence text of every third party component.