Talk:Akashi's Improvement Arsenal/@comment-203.111.224.55-20141101230445/@comment-24928130-20141101231655

The upgrade button is the same one as the improvement button (the blue one on the bottom). Just make sure you have enough spare equipment (it's more than one for an upgrade). In this case, I needed 3 extra Quad(oxy) to upgrade to a Quint.