Starting to come together now. Along with a potential victim for the vampire, too busy admiring her own reflection to do anything about the peril she's in (or perhaps that's just a bad excuse for having not written any AI code yet...), the controls have been improved and crates can now be either pushed around or picked up and moved.
Some of the puzzle aspects now come into play. If you want to balance 3 crates on top of each other but 2 of them only exist in either the real world or the reflected world then you have to make sure the crate that exists in both worlds is in the center as the other 2 would simply pass through each other.
Other puzzles may involve jumping from a surface that only exists in one world, switching worlds in mid air, and then landing on a surface that only exists in the other world.
Looking forward to doing some more tomorrow!