Thank you! I actually only learned about this game jam about 48 hours before the deadline. I've never even heard of game jams before, much less made a game. I picked up the temporary license of GameMaker Studio and obsessively started figuring everything out. Most of the time was spent on the basic mechanics of the game (alerts, killing, failure, success, the little icons in the top corner). I'd say in total I spent maybe 6 hours on the graphics and maybe 20 hours on everything else. All in all I'm very happy with how this came out, given the circumstances.
I would have liked to have made at least two more levels, with some increased problem-solving required. I have so many ideas of what I can do with a 1-bit stealth game. But unfortunately I didn't have enough time.
I decided I'm going to try to do a larger version of this, as if it was played on the SNES. I like imagining what would have been possible on the SNES if they tried to make a game with a 2-bit pallete, vs 15-bit RGB. Imagine how much more data you could cram in, how much processing time would be saved ,etc. You can see that here: https://creepmobile.itch.io/death-game?secret=24hw0EUrDWtWOjSSpgZChnmnqU
Anyway, thank you for playing!