Buttons only work with the story mode?

This has to be an easy one. My son finished the levels and went to Minecraft pi but the buttons don’t work there in order to move around. How are you supposed to move around in the Minecraft: Pi game? We can’t even exit the game without rebooting.

Hi saintsfanfl,
I just replied to your question here: How to move around in Minecraft Pi? Buttons don't work there