Use a keyboard or connected controller. Choose your bindings in the game's settings. Press Escape to open the pause menu during play.
Choose local split-screen in the game menu to play together on this screen. Online multiplayer is not available in the browser yet.
Save through the pause menu and wait for “Saved in this browser” before closing the tab. Saves stay in this browser on this site's address; clearing site data removes them.
The game is suspended while this help panel is open. Touch controls are not available yet.