How do you make a dungeon float?

You need 2 scoops of ice cream, a dungeon and some soda.

I figured out how to make the black part nonsolid and the walls solid (although the other character sprites might be the wrong size?). The zoom in on the gameplay might be a bit much for a dungeon that you can't insta-reference a map for. As stated, I need to see if the Stalfos flashes like other enemies, and IDK why it didn't drop a key when I set it's LootItem to specifically Key. The lesson words (but not video) do mention "UpDirection", etc. on the raft, so hopefully that will lock the player's animation whilst on the raft.