Cool idea and nice realization! Intro is great too!
Controls are a bit buggy though. Grip buttons sometimes grab items, sometimes teleport me somewhere else.
The grip DOES always work...but you are a ghost, so you can't hold onto things for very long. That wasn't explained well, but that's part of the game itself. This explains why, in a lot of ghost movies, things seem to go flying rapidly and randomly...it is because the ghosts can't grip very long, so they can only throw stuff quickly.