I hit a wall in the last two days, which kind of halted progress. Fortunately, I figured out stuff and was able to continue with the rooms I designed for this project (I was, at one point, unsure if I would finish the game and made a single room where players could test out Mari's ability). There are still a number of quirks to the game, and I didn't find any time to implement dialog, but you can play through and do a couple of things. I also ended up removing Mari's ability to crawl because I didn't have time to debug it. Ah well. When the number of targets left hits zero, the game ends (although you can press the "r" to return to the title screen and walk around the game freely).
You can play the game here: https://itch.io/jam/my-first-game-jam-winter-2017/rate/113184