That covers the interaction design but not player choice, which so far is the least-developed element of the game (this will change once the basic skeleton is working as it should). Right now if you tap at the right time and ‘hit’ a circle, text appears for a moment that says “Hostage is down” or “Misfire” or something to that effect. However there is no consequence for doing so. Neither is there any feedback for ‘hitting’ the enemy square. One concept that we’re messing with, once the basic skeleton is moving as intended, is using the postmortem negative space of the game screen to graph all the dead shapes. The coordinates at which they died could remain filled-in in the next round, and those spots might then become walls/obstacles for characters to bounce off of or hide behind.