Aquarius GMO: Asymptote gains a light blue hue around his body overwriting the normal skin tone that he has. Any further changes would result in errors and this is the best Joseph could come up with. If used while in a certain function of the Variable subtype, allows him to interact with water and ice panels like an aqua-elemental navi.
Emerald GMO: Asymptote gets a deep, leafy green hue from this, which overwrites his normal skin tone. This is about as far as Joseph could get before his new internal systems stopped any further gains. If used with a certain Variable subtype skill, this allows him to interact with grass, mud and soil like a wood-elemental navi would.