Hi,
Thank you for these comments and I saw you made a lot of useful comments on other projects for this Jam as well. I keep comments in mind when I work on future projects, and try to fulfill them. I'm still struggling to make scary monsters. Right now, they're still just kind of Doom-y and flat. I did put an Escape menu in my latest game. And there are definitive Ending screens.
https://snakewinter.itch.io/mars-action-rover-searcher
I'm not sure why Alt+Tab closed the game on you. I've been testing that on my games now and it doesn't close on me when I do that.