Expression switch

An expression switch is a switch that can be added to a summonoid's control panel. If "Expression" is on, summonoid will have feelings and be in control of him/herself. If "Expression" is off, the summonoid won't have feelings and will usually fall under the SA's control. Not all summonoids have this option on their control panel, though. The summonoids' feelings are managed by the SA's in the story Summonoid. After any and all of the 3 endings of the story, this is changed so that their feelings aren't managed by the SA's anymore, but they now have an option to turn their own feelings off and back on any time, but still, not all summonoids choose to have the option to do so. If a summonoid turns his/her own feelings off after the expression switch has been modified, s/he will still be in control of him/herself, but won't have feelings until s/he turns them back on. If the expression switch is left in the middle, the summonoid will partially have and not have feelings. In Summonoid, if this is done, the summonoid might think of whether to help the ally villagers out, or to help Summonine out.