You know how when you walk onto the ladder, you can only go in two directions - forward and back - and not step off of the ladder to the left or right?
What about a Ladder 2 that fixes this? It acts like an extra floor tile, meaning you can go in all four directions (and stand on all four quadrants of the ladder tile). I don't know how hard this would be to impliment - or if it's implimentable - but i think it's a good idea.