Congrats on getting the entry in just in time!
Your game is remarkably like another entry in the submission list in idea - one person moves a character but cant see traps, whereas the other can see the traps but cant move the character. Again, it's a great idea for a 2 player game and I think you've done it quite well!
I love the art for this. Absolutely love it. Pixel art is quite difficult to get right, but the walls especially look great. On top of that the music is very fitting as well.
Since I'm trying to play these titles on my own, I had to try and remember the safe path (which was easy enough for the tutorial) and then play the game myself as well. However, trying to select the mapper for level 1, 2 or 3 just puts me in the game as the explorer, which has made it very difficult to play. Through some trial and error I got through most of level 1 , but stopped trying eventually (because not being able to access the map just made it less fun). - Okay, little update: I was able to select Mapper for these levels after restarting the game, but it seems you can't switch back to the mapper once you've selected the explorer, which is a bit of a pain, but I worked around it to complete level 1 and 2.
Good idea, decent execution, although given the submission time I think with just a tiny bit more time you could have gotten that (quite big) bug out and it would have been even better.
Unfortunately that's just how it is sometimes with Game Jams.
Good job nonetheless!