Exit (from the emulator, or netplay chat mode)

Enable network play console input

Toggle in-game quick help screen

Save state

Activate in-game input configuration process for a command key

Detect analog buttons on physical joysticks/gamepads(for use with the input configuration process)

Select medium (CD, floppy disk, etc.) for selected drive

Save (rawish) screen snapshot

Insert/Eject medium (CD, floppy disk, etc.) for selected drive

Load state

Rewind emulation, if save-state rewinding functionality is enabled, up to 600 frames

Hard reset (toggle power switch)

Reset

Decrement selected save state slot

Exit (from the emulator, or netplay chat mode)

Toggle fullscreen mode

Toggle 600-frame save-state rewinding functionality, disabled by default

Reinitialize physical joysticks/gamepads. Note that this will also cause Mednafen to forget about any analog buttons detected by previously pressing F3

Increment selected save state slot

Exit frame advance mode

Enter frame advance mode, or advance the frame if already in it

Record movie

Select drive

Rotate the screen

Like F2, but after configuration completes, to activate the configured command key will require all buttons configured to it to be in a pressed state simultaneously to trigger the action. Note that keyboard modifier keys(CTRL, ALT, SHIFT) are still treated as modifiers and not discrete keys. Especially useful in conjunction with the ckdelay setting

Toggle cheats active

Fast-forward

Slow-forward

Toggle frames-per-second display(from top to bottom, the display format is: virtual, rendered, blitted)

Play movie

Save screen snapshot, taken after all scaling and special filters/shaders are applied

Select save state slot

… to 8: Select input device on input port 1-8

Toggle layer

Pause/Unpause

… to 8: Configure buttons for emulated device on input port 1-8)

Select movie slot

Toggle cheat console

Toggle debugger

Toggle input grabbing (for emulated mice and keyboards)