Jabba's Palace

There is a gate with a Boba Fett Picture on it. With the "hat" walk up to it and activate it. You get to a room with Luke in it. He joins you. Use Luke's Force to destroy to pillars next to a gate with R2-D2 and C3PO behind it. The gate is destroyed and they join you. Adventure around getting Minikits and Studs until you want to continue with the level. Return to the room where you found Luke and head right to a C3PO panel. Walk up to it, then switch to C3PO and activate it. In the next room, build a platform so that you can jump up. Slash two random things. One has the materials you can use force on for another platform. Jump on it and a Gamoreen Guard comes on the other side. Force a new platform and he jumps over to you. Defeat him and jump across. Continue and find a gap. Fly with R2 then keep going. Use a C3PO switch to get into Jabba's room. Get another "hat" and activate a switch next to a frozen Han Solo. What happens next is a suprise.

Hope this helped (honestly I should write a walkthrough for this game)