you can do this glitch any where in the game that has a breakable object lined up To a wall; ok find a break able object right front of a wall(no space in between Wall and the object).walk or jump behind the object and you should be in the Black zone acting weird.
First go into hoth escape free play you must have clown mode on and must be padewan luke. Also have lightsaber red on, change charecter to anyone after that then,change back to luke walk out of room and reenter the room and wala!!! (by the way if you wondered this is my first post) enjoy
In Free Play mode use 3CPO to unlock the first door in Episode IV: Chapter 5 - Death Star Escape then use a character who has force powers to put together the fridge in the room. The fridge will open and a Super Red Power Block will come out which will allow you to buy Invincibility in the cantina for 900,000 Studs.