Nice game, great idea and good execution! Keep up the good work!
Viewing post in Why not together jam comments
I would change the graphics to something milder, more pastel colors as these seem a bit too in your face. Also, I would make the wall and character colliders smaller as sometimea you don't fit in between the gaps easily. But as a game jam game, it's good. For the future if you want to improve it to release it as a full game maybe you could consoder these :)