Oh dear, that might not be clear. You can use the escape key during gameplay to access the options. In the top right of this "pause" menu, there's a house icon that lets you return to the main menu. Thanks for taking the time to try it out.
When I press Escape, it exits fullscreen mode 😅
No worries though, maybe I’m just too used to mobile-style controls.
Ah indeed that's the problem with browser games, I should have thought about it and assigned another key..
I put the game in full screen on itch, that way the problem will no longer be. Thanks for informing me :)