yeah the floor issue :) For one sided platforms it is a feature that you can press the down arrow cursor key to quickly move through them. With the new onscreen mobile controls, you can hit it accidentally. And there are also some bugs in the collision system like when there is overlap with a vending machine. These are all little things I will look at one at a time. But yeah it is pretty complex because the rope gun uses matter physics and the tilemaps use arcade physics.