Now THIS is insane for 4 hours of dev time. I think your implementation of these little roguelike elements is excellent. Would be nice to have a little indicator on your box that reminds you with direction (horizontally) you're currently moving in. Actually, when you hover a dice, you could get a "ghost" indicator that tells you where you'll end up if you use that die.
Getting a bunch of chests can quickly allow you to go infinite, but I am seriously impressed with this.