Hi there.
For anyone that is trying to find out how to get through the door with the question mark this is how you do it.
In each mission you have to collect those studs. What you have to do is collect 100% of studs in every mission which supplies part of the superkit.
When you have collected 100% in each level it you'll have one of the of the ships from Star Wars Episode IV A New Hope.
Then when you enter Dexters Diner the door will be unlocked.
More tricks, tips and cheats for this game are right here - Lego Star Wars: The Video Game cheats
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