In the original idea for this game, we wanted the player to be able to interact with certain environment objects, with the counterpart of triggering a loud noise. But we couldn't implement it on time. :) we couldn't implement most of the puzzle mechanics we intended. As our first game jam, with a game made from scratch, we probably didn't use the best tools or didn't scope it small enough.
The game specifically designed to only provide non violent controls, so no shooting. (even though it's hard to understand any context with this version of the game, so no from a gameplay point of view mouse is useless, it's a full infiltration game with just movement controls)