Hey, once we awarded the helicopter project, it would no longer allow us to pm you. But to answer your question. The unlockable screen will show the unlockables, but also act like a character selection screen.
We would like three blocks on this page the starting one (Blue color), one unlocked at 5000 points (Green color), 10000 points (Red Color). They will have a select button underneath. The block selected will be the one used when the game is started and it will be in color. The other two will be gray. If they are locked then they will say locked over them.
Let us know if you have anymore questions.