Emulator Settings

Configure emulation speed, rewind, rumble, and other Playback-provided settings.

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The Emulator Settings contain options provided by Playback alongside any core-specific settings. Access them by going to Settings > Emulator.

Core-specific settings vary depending on which emulator core you’re using. This article covers the settings provided by Playback itself.

System

Setting	Options	Default	Description
Fast-forward Speed	0.25x to 10.0x	2.0x	Speed multiplier when fast-forwarding. Speeds higher than 2x may cause issues with Autosave to Cartridge.
Rewind Buffer Size	32 MB, 64 MB, 128 MB, 256 MB, 512 MB	32 MB	Memory reserved for rewind history. Larger buffers allow longer rewind but may cause system instability.
Rewind Granularity	Every 1 frame (Smoothest) to Every 6 frames (Least precise)	Every 1 frame	How often a state is saved for rewinding. Higher values use less memory but are less precise.
Rewind Speed	0.25x to 10.0x	1.0x	Playback speed of the rewind animation.
High Fidelity Mode	Enabled / Disabled	Disabled	Runs audio and video at rates close to original hardware. Increases CPU usage — disable if you notice low framerates.
RTC Battery State Emulation	Enabled / Disabled	Disabled	Matches emulator RTC state to your cartridge’s battery. Leave Disabled if your cartridge battery is dry but you still want time-based in-game events.
In-game save verifications	Enabled / Disabled	Disabled	Enables integrity checks for save data during gameplay.

Setting	Options	Default	Description
Gamepad rumble	Enabled / Disabled	Enabled	Enables rumble/vibration for games that support it. For better compatibility, also enable Game Boy® Player Rumble in the core settings.