I like the concept here! The graphics are very 90s. I really like the HUD design, with the light indicator in the center and how it looks like part of a helmet. The voice acting for Robogranny is also well done. I especially like how there are alternate versions of some voice lines where the voice sounds more corrupted/glitched, kind of like Shodan from System Shock.
It's cool that you can be spotted through both light and sound, and that different surfaces produce more or less sound. There are many possibilities with these mechanics.
It's awesome that you added a save and load system. I imagine that couldn't have been too easy.
I do have some ideas on how the game could be improved, as well as some bugs I'd like to mention.
I think one of my main complaints about the game is that Robogranny's artificial intelligence could use some improvement. She doesn't seem to have any path finding, so if she hears you from another room, or around a corner, she can't really do anything. This makes it very easy to get away from her if you're being chased.
There were a couple times where the game crashed out of nowhere. I'm not sure why this happened. I played the windows version.
There were a few objects in the level that had no collision and I could just walk right through them. The vent you can go through is cool, but it's difficult to get inside it. Also, climbing the boxes to get to the vent can be finicky, since the climbing animation doesn't always trigger, or at least it's not clear how to trigger it.
Some more sound effects for actions like picking up cookies, opening doors, and trying to open locked doors would really help a lot. Sound effects can make even the smallest of actions more satisfying and help the player fully understand what's happening in the game.
This game's got a lot of potential! Keep up the good work!