How to get back to fullscreen in Broken Age on OS X

I dont think you can do this, as a friend of mine (who also has a Mac) wanted to be able to switch between windowed and full-screen.

While on Windows is Alt+Enter, there is nothing for Mac.

⌘tab usually is correct.

Unfortunately many games are badly ported - so they often do not support it in full-screen mode. Some games (for me Telltale games) allow to switch to a "window" mode - when you are in that it is typically possible to switch.