Today I updated the demo to include a very basic level select. I'm learning as I go on this project so the level select is mostly about me establishing how I make it work. 

Upon releasing I realised the button to active the menu isn't too friendly at the moment. 

On the key board it's "E" and with the joypad it's the right trigger. I'll fix the up in the next update and using something that feels a bit more natural.