In older version, where normal Ghinis were in the Ghini class, and Bubbles were in their own separate enemy class, these enemies floated on screens with Sideview Gravity, but in newer versions, where these enemies were moved to the walking enemy class, they now fall in sideview gravity. So to fix this problem with older quests, perhaps we could have an enemy editor flag that makes the enemy float in sideview gravity when checked.