Down the Rabbit Hole
Upon entering Wonderland, our heroes come across the White Rabbit, who is apparently extremely late for a very important date! Naturally, you should follow him to the end of the hallway and into the Bizarre Room. During the cutscene that plays when you enter the Bizarre Room, you are prompted to drink one of the two bottles on the table to shrink down to the right size. Before you do this, push the bed flat into the wall to reveal a small doorway.
Drink the blue bottle to shrink down small enough to go through the door you just uncovered. However, when you shrink down, the room will suddenly fill with Heartless, which you can either fight or run away from. It’s a good idea to dispatch of at least a few groups of enemies to gain some EXP before moving on.
On the other side of the door is the Queen’s Castle, which is currently in the middle of a trial to see if Alice is innocent or guilty. The Queen of Hearts has accused Alice of attempting to steal her heart, and Sora and the gang step in to defend her. Now it’s your responsibility to search all over Wonderland for pieces of evidence to help prove Alice’s innocence. Head through the opening in the wall to the next area.