Use the mouse. Bugs: Some numbers don't show up after you click "Levels". Sometimes when you click "Levels" The levels don't show up immediately.
This is for the Collaboration Omega started by @-Nova- . You may use, but use with credit. How this ties in with the game: Whenever a button is clicked, it brodcasts that button's number. Whenever a level is unlocked, a message must be brodcasted which contains the number of the level and "Unlock". E.G. 5Unlock There will also be a global variable called "MenuHidden". If Hidden is equal to 1, the buttons will be hidden. Otherwise, they will be shown. I tied @TriLinear 's buttons in.
