A More Beautiful World – A Visual Novel Controls Guide

Ctrl/Tab: Super Fast Forward (aka: skip)
Tap Ctrl first to get a feel for how quickly it’s gonna go. Then hold for however long you’d like.
Tab is a tap only.

Arrow Keys: Selects menu choices, buttons, and sliders.

Mousewheel-Up/PageUp: Rewind
Rolls back in time through previous dialogue and choices.

Mousewheel-Down/PageDown: Fast Forward
Rolls forward in time through dialogue and choices.
Only works when you’ve already seen the dialogue for that session, but can be changed in the settings.

Middle-click/H: Removes UI
Great for enjoying the art and taking screenshots.

Space/Enter/Left-Click: End dialogue and begin next dialogue
Set the game to Auto instead. It flows surprisingly well.
Space is the only one that doesn’t activate choices.

Right-Click/Escape: Opens/exits game menu.

F: Toggles fullscreen mode.

S: UI-less non-Steam screenshot
Saves it in the game directory and names screenshotxxxx.png, where xxxx is a serial number.

Alt-M/Command-H: Hides (iconifies) the window.

Alt-F4/Command-Q: Quits the game.

Delete: Deletes selected save slot.

V: Toggles self-voicing mode.
Reads text to the user using an os-supplied speech synthesizer. Read the self-voicing[www.renpy.org] documentation for more information.

Shift+C: Toggles clipboard-voicing mode.
Copies text to the clipboard so it can be read by a screen reader.

If you know of any others, go ahead and mention them in the comments.

Edit: I realized immediately after publishing that there’s a Readme html file in the game directory. This guide has been updated accordingly.