You are trapped in a dungeon. Find your way out. If you find a place (such as going to the right here) you can remix and decide what that leads to. You cannot remix if there is already a remix there. You can name the remix (such as "right") to know which place it is. handy link to a place that have an exit that is empty: https://scratch.mit.edu/projects/1122379803/
Empty means that you can decide what is there. Taken means that there is a remix for that. Not fully explored means there is a branch that has not been made. https://scratch.mit.edu/projects/1122107317/remixtree/ also, a very good decision is to jump down here yes totally https://scratch.mit.edu/projects/1122734477/