This is a pretty solid concept. In terms of accessibility I think this game is great; I was particularly glad to see the number of options presented. Gameplay itself is nice; basic, but it works well. It was fun having as big a matrix for the creature to hide in. One very minor bug: I don’t think the scan sound resets when you let go of a key and scan again, which means you might start the next scan by hearing the tail-end of the scanning sound. Still, this is a nitpick and considering you’ll likely be scanning each space for a second or two it doesn’t break the game in any way.