Sorry this is a stupid question but, relating to how Mettaton in Vanilla Undertale had a light display to show expression. Does Inverted Fate's Mettaton have that feature or does he only show Expression through the Shades moving or curving?
The shades are his primary way of emoting (and they cover most of his screen, anyway). I imagine his screen color COULD change, but the primary means he emotes with those absurd anime shades that are powered by unknown SCIENCE… and maybe something else.
Considering that brief… thing that happened with him before he left the house. What could that have been?