Heya! Just finished the game to the best of my ability (trying out different combinations of actions to see how much things change, as well as the differences in the ending sequence based on sizes) and I've got to say, this was incredible! It's worth mentioning, I loaded my save file from the last time I'd played and when I went into the final area, moving to look at either the sphere or the tube spat out an error code, but starting from the beginning didn't seem to do that. Who knows, this might even already be fixed in 1.6.1, but there's no harm in letting you know :)